Re: [sr-dev] [kamailio/kamailio] crash on run_rr_callbacks() from dlg_onroute() (#1059)

same thing in another customer

``` #0 0x00007fae3f1f7e14 in strnlen () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007fae3f1c0b19 in vfprintf () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #2 0x00007fae3f25a216 in __vsyslog_chk () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #3 0x00007fae3f25a36f in syslog () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #4 0x00007fae32c3457e in dlg_onroute (req=0x7fae3def7ac8, route_params=0x7fad006e9b1e, param=0x7fff717dab10) at dlg_handlers.c:1350 ```