[sr-dev] reset dst_uri in t_load_contacts

Juha, Function t_loads contacts in tm/t_serial.c encodes the Request-URI and all branches of the SIP message into an AVP. At the end the function calls clear_branches to remove all branches from the SIP request, so that a subsequent call to t_next_contacts can only restore those with highest q number. I am wondering if calling clear_branches is enough. Shouldn't the function also call reset_dst_uri to reset the value of the dst_uri (which is now also stored in the AVP), and perhaps also clear the send socket, the branch flags and the path vector for the Request-URI? All these values are encoded into the AVP, but they are only cleared for additional branches (in clear_branches), but not for the Request-URI "branch". I also considered doing that in clear_branches, but then I realized that this function is called from other places and modules and it could break them. Any thoughts on this? How thorough should t_load_contacts be when it resets variables whose values are stored in the AVP? -- Jan