use existing error handling

Author: suejung-sentry

graphql_api/types/repository/repository.py

@@ -265,19 +265,12 @@ def resolve_repository_result_type(obj: Any, *_: Any) -> Optional[str]:
 def resolve_is_first_pull_request(
     repository: Repository, info: GraphQLResolveInfo
 ) -> bool:
-    try:
-        # Get at most 2 PRs to determine if there's only one
-        pull_requests = repository.pull_requests.values("id", "compared_to")[:2]
-        if len(pull_requests) != 1:
-            return False
-        # For single PR, check if it's a valid first PR by verifying no compared_to
-        return pull_requests[0]["compared_to"] is None
-    except Exception as e:
-        log.error(
-            "Error checking is_first_pull_request, assuming False",
-            extra=dict(repo_id=repository.repoid, error=str(e)),
-        )
+    # Get at most 2 PRs to determine if there's only one
+    pull_requests = repository.pull_requests.values("id", "compared_to")[:2]
+    if len(pull_requests) != 1:
         return False
+    # For single PR, check if it's a valid first PR by verifying no compared_to
+    return pull_requests[0]["compared_to"] is None
 
 
 @repository_bindable.field("isGithubRateLimited")