modules_k/pua: Temporary dialogs did not contain all of the required fields.

- Temporary dialogs are created when a SUBSCRIBE is sent to handle the timing
  issue that means that NOTIFYs can be processed before 200 OKs (the real
  dialog is created on 200 OK).
- Not every required field was filled in for the temporary dialogs so dialog
  searches were failing and duplicate dialogs created.
(cherry picked from commit 464d6a353f1de7d7ca38cd856320b973f3341679)

modules_k/pua/send_subscribe.c

@@ -963,8 +963,12 @@ insert:
 		presentity->id.len = subs->id.len;
 		size += subs->id.len;
 
+		presentity->event = pres.event;
+		presentity->flag = pres.flag;
+
 		/* Set the temporary record expiry for 2 * 64T1 seconds from now */
 		presentity->expires= (int)time(NULL) + 64;
+		presentity->desired_expires= presentity->expires;
 
 		insert_htable(presentity);