AttributeError:  'GithubPRComment' object has no attribute '_body'
Any ideas how [this](https://sentry.io/organizations/red-hat-0p/issues/1369231585) could have happen?

```python
AttributeError: 'GithubPRComment' object has no attribute '_body'
  File "packit_service/worker/tasks.py", line 42, in process_message
    return SteveJobs().process_message(event=event, topic=topic)
  File "packit_service/worker/jobs.py", line 249, in process_message
    jobs_results[job_type] = handler.run_n_clean()
  File "packit_service/worker/handler.py", line 177, in run_n_clean
    return self.run()
  File "packit_service/worker/fedmsg_handlers.py", line 221, in run
    if not self.was_last_build_successful():
  File "packit_service/worker/fedmsg_handlers.py", line 189, in was_last_build_successful
    if "Congratulations!" in comment.comment:
  File "ogr/abstract.py", line 78, in comment
    return self._body
```
diff --git a/ogr/abstract.py b/ogr/abstract.py
index df41293..7279164 100644
--- a/ogr/abstract.py
+++ b/ogr/abstract.py
@@ -75,7 +75,7 @@ class Comment:
             "Using deprecated property, that will be removed in 0.14.0"
             " (or 1.0.0 if it comes sooner). Please use body. "
         )
-        return self._body
+        return self.body
 
     @property
     def body(self) -> str:
['ogr/abstract.py']