Fix pull request review comment support

Author: anoadragon453

command_handler.py

@@ -60,8 +60,10 @@ def handle_comment(self, comment: Dict):
         commands = self.parse_commands_from_text(comment["comment"]["body"])
 
         # Retrieve the issue this comment is attached to
-        self.proposal = self.repo.get_issue(comment["issue"]["number"])
-        self.proposal_labels_str = [label["name"] for label in comment["issue"]["labels"]]
+        # Account for issue and pull request review comments
+        issue = comment["issue"] if "issue" in comment else comment["pull_request"]
+        self.proposal = self.repo.get_issue(issue["number"])
+        self.proposal_labels_str = [label["name"] for label in issue["labels"]]
         original_labels = self.proposal_labels_str.copy()
 
         self.comment = comment

webhook.py

@@ -76,8 +76,11 @@ def _process_comment(self, comment: Dict):
             log.debug("Ignoring comment from ourselves")
             return
 
-        # Is this a proposal?
-        if not self._issue_has_label(comment["issue"], self.config.github_proposal_label):
+        # Account for issue and pull request review comments
+        issue = comment["issue"] if "issue" in comment else comment["pull_request"]
+
+        # Check if this is a proposal
+        if not self._issue_has_label(issue, self.config.github_proposal_label):
             log.debug("Ignoring comment without appropriate proposal label")
             return