[SR-Users] Wrong dialog selected in on_reply/failure route in case of spirals.

After kamailio upgrade from v3.3 to v4.1.7 in production ~5% of calls with spirals dialog are failed with wrong dialog variables in on-reply/failure routes. The problem has been reproduced in the LAB (load test generated by SIPP). Please see the attached file with debug3 log. Scenario: Proxy Location Kamailio P1 Nbr translation Redirect | INVITE | | | dlg 0x7f8f8501aba0 | | | Call-ID:(5-8286@10.25.153.150) | | |------------------------------->| | | 100 Trying | | | dlg 0x7f8f8501aba0 | | | Call-ID:(5-8286@10.25.153.150) | | |<-------------------------------| | | | | | INVITE | | | dlg 0x7f8f8501aba0 | | | Call-ID:(5-8286@10.25.153.150) | | |<-------------------------------| | | 100 Trying | | | dlg 0x7f8f8501aba0 | | | Call-ID:(5-8286@10.25.153.150) | | |------------------------------->| | | | | | INVITE | | | dlg 0x7f8f8501aba0 | | | Call-ID:(5-8286@10.25.153.150) | |-------------------------------------------------------------->| | 100 Trying | | dlg 0x7f8f8504cda0 !!!!!!!! | | Call-ID:(5-8286@10.25.153.150)| |<--------------------------------------------------------------| | 301 Moved Permanently | | dlg 0x7f8f8504cda0 !!!!!!!! | | Call-ID:(5-8286@10.25.153.150)| |<--------------------------------------------------------------| | | Thank you, Julia.