Gerrit git cl status: do not treat CQ comment as reviewer reply.

R=sergiyb@chromium.org,agable@chromium.org
BUG=

Change-Id: I7684923c19fe7441cdd52b7707c28f01c95a4ba4
Reviewed-on: https://chromium-review.googlesource.com/433699
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>

git_cl.py

@@ -2387,13 +2387,15 @@ class _GerritChangelistImpl(_ChangelistCodereviewBase):
       return 'unsent'
 
     messages = data.get('messages', [])
-    if messages:
-      owner = data['owner'].get('_account_id')
-      last_message_author = messages[-1].get('author', {}).get('_account_id')
-      if owner != last_message_author:
+    owner = data['owner'].get('_account_id')
+    while messages:
+      last_message_author = messages.pop().get('author', {})
+      if last_message_author.get('email') == COMMIT_BOT_EMAIL:
+        # Ignore replies from CQ.
+        continue
+      if owner != last_message_author.get('_account_id'):
         # Some reply from non-owner.
         return 'reply'
-
     return 'waiting'
 
   def GetMostRecentPatchset(self):