little off by one error; raised problems when user withdrew immediate…

…ly after (or at same time as) consenting.

portal/models/qb_timeline.py

@@ -1166,7 +1166,7 @@ def attempt_update(user_id, research_study_id, invalidate_existing):
                     if qbt.at > withdrawal_date:
                         break
                     j += 1
-                if j > 1:
+                if j > 0:
                     # include visit in withdrawn for qb_status functionality
                     kwargs['qb_id'] = pending_qbts[j-1].qb_id
                     kwargs['qb_iteration'] = pending_qbts[j-1].qb_iteration