- Fix mesh state assertion failure due to callback removal.

git-svn-id: file:///svn/unbound/trunk@4681 be551aaa-1e26-0410-a405-d3ace91eadb9

doc/Changelog

@@ -1,6 +1,7 @@
 7 May 2018: Wouter
 	- Fix windows to not have sticky TLS events for TCP.
 	- Fix read of DNS over TLS length and data in one read call.
+	- Fix mesh state assertion failure due to callback removal.
 
 3 May 2018: Wouter
 	- Fix that configure --with-libhiredis also turns on cachedb.

services/mesh.c

@@ -1173,6 +1173,10 @@ void mesh_query_done(struct mesh_state* mstate)
 	while((c = mstate->cb_list) != NULL) {
 		/* take this cb off the list; so that the list can be
 		 * changed, eg. by adds from the callback routine */
+		if(!mstate->reply_list && mstate->cb_list && !c->next) {
+			/* was a reply state, not anymore */
+			mstate->s.env->mesh->num_reply_states--;
+		}
 		mstate->cb_list = c->next;
 		if(!mstate->reply_list && !mstate->cb_list &&
 			mstate->super_set.count == 0)