[SR-Users] Error when using function lookup_branches

Hello, I'm runnig kamailio 4.2.0 and using the lookup_branches function from the register module to lookup all branches after a alias_db_lookup. The function seems to work fine but i see the following error in the log file just after the lookup: INFO: <core> [mem/f_malloc.c:599]: fm_free(): freeing a free fragment (0x7fad277fe110/0x7fad277fe148) - ignore INFO: <core> [mem/f_malloc.c:599]: fm_free(): freeing a free fragment (0x7fad277fcd38/0x7fad277fcd70) - ignore INFO: <core> [mem/f_malloc.c:599]: fm_free(): freeing a free fragment (0x7fad277fcd88/0x7fad277fcdc0) - ignore Code: alias_db_lookup("dbaliases"); if (!lookup_branches("location")) { This only happens when i have multiple branches, could this be a error in my script? Thanks, Jan