MT#7059 allow t_is_failure_route() call from branch route.

debian/patches/series

@@ -2,6 +2,7 @@
 upstream/acc-allow-pseudo-variables-as-first-parameter-for-fu.patch
 upstream/acc-add-documentation-note-indicating-the-use-of-pse.patch
 upstream/debug/0001-modules-debugger-trace-msg-out.patch
+upstream/0006-tmx-handle-branch-route.patch
 ## multipart bodies
 upstream/0001-parser-add-internal-flag-FL_BODY_MULTIPART.patch
 upstream/0001-core-add-str_append-helper-function.patch

debian/patches/upstream/0006-tmx-handle-branch-route.patch

@@ -0,0 +1,10 @@
+--- a/modules/tmx/t_var.c
++++ b/modules/tmx/t_var.c
+@@ -472,6 +472,7 @@ int pv_get_tm_reply_code(struct sip_msg 
+ 	} else {
+ 		switch (get_route_type()) {
+ 			case REQUEST_ROUTE:
++			case BRANCH_ROUTE:
+ 				/* use the status of the last sent reply */
+ 				code = t->uas.status;
+ 				break;