ReviewBot: copy default review messages before each review.

ReviewBot.py

@@ -215,6 +215,9 @@ class ReviewBot(object):
         return None if nothing to do, True to accept, False to reject
         """
 
+        # Copy original values to revert changes made to them.
+        self.review_messages = self.DEFAULT_REVIEW_MESSAGES.copy()
+
         if self.only_one_action and len(req.actions) != 1:
             self.review_messages['declined'] = 'Only one action per request'
             return False

check_source.py

@@ -32,12 +32,6 @@ class CheckSource(ReviewBot.ReviewBot):
         self.staging_group = 'factory-staging'
         self.skip_add_reviews = False
 
-    def check_one_request(self, request):
-        # Copy original values to revert changes made to them.
-        self.review_messages = self.DEFAULT_REVIEW_MESSAGES.copy()
-
-        return super(CheckSource, self).check_one_request(request)
-
     def check_source_submission(self, source_project, source_package, source_revision, target_project, target_package):
         super(CheckSource, self).check_source_submission(source_project, source_package, source_revision, target_project, target_package)
 

leaper.py

@@ -402,7 +402,6 @@ class Leaper(ReviewBot.ReviewBot):
         return False
 
     def check_one_request(self, req):
-        self.review_messages = self.DEFAULT_REVIEW_MESSAGES.copy()
         self.needs_legal_review = False
         self.needs_reviewteam = False
         self.needs_release_manager = False