vlr_sgs: Drop recorded LastEutranPlmnId when UE no longer associated

Change-Id: I0dcb1850ab4f6f7d42bfcb19665ddeae2d3b057a
diff --git a/tests/msc_vlr/msc_vlr_test_hlr_reject.err b/tests/msc_vlr/msc_vlr_test_hlr_reject.err
index 40b26d2..b0b9bb0 100644
--- a/tests/msc_vlr/msc_vlr_test_hlr_reject.err
+++ b/tests/msc_vlr/msc_vlr_test_hlr_reject.err
@@ -27,6 +27,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -125,6 +126,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -226,6 +228,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -390,6 +393,7 @@
 DMSC msc_a(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - _lu_fsm_associate_vsub: now used by 2 (attached,active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -553,6 +557,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -717,6 +722,7 @@
 DMSC msc_a(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - _lu_fsm_associate_vsub: now used by 2 (attached,active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -818,6 +824,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -983,6 +990,7 @@
 DMSC msc_a(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620:MSISDN-46071 - _lu_fsm_associate_vsub: now used by 2 (attached,active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:MSISDN-46071:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -1081,6 +1089,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: state_chg to VLR_ULA_S_WAIT_AUTH
@@ -1178,6 +1187,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()
@@ -1280,6 +1290,7 @@
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: Received Event MSC_A_EV_COMPLETE_LAYER_3_OK
 DMSC msc_a(IMSI-901700000004620:GERAN-A:LU){MSC_A_ST_VALIDATE_L3}: state_chg to MSC_A_ST_AUTH_CIPH
 DREF VLR subscr IMSI-901700000004620 - _lu_fsm_associate_vsub: now used by 1 (active-conn)
+DVLR set Last E-UTRAN PLMN ID on subscriber: (none)
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1_pre()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_node1()
 DVLR vlr_lu_fsm(IMSI-901700000004620:GERAN-A:LU){VLR_ULA_S_IDLE}: vlr_loc_upd_post_auth()