race condition with pre-answered and cancel version 1.10.11 #2970
Description
Version
Version 1.10.11
Using mod_kazoo module (i don't think that matters really)
Describe the bug
softphone generates a call (legA), call is routed to carrier (legB).
Recv Session Progress (Pre-Answer).
LegA is Cancelled and LegB Answered some msec later.
channel is not destroy
LegA callid: 2mge8hdfn1lfr5f5qm07
LegB callid: a64fdde8-c584-440d-b290-fdecfca025a5