fix test

Author: suejung-sentry

graphql_api/tests/test_repository.py

@@ -513,11 +513,6 @@ def test_repository_is_first_pull_request(self) -> None:
 
         assert data["me"]["owner"]["repository"]["isFirstPullRequest"] == True
 
-        assert (
-            repo.pull_requests.values("id")[:2].query
-            == 'SELECT "pull_requests"."id" FROM "pull_requests" WHERE "pull_requests"."repoid" = 1 ORDER BY "pull_requests"."pullid" DESC LIMIT 2'
-        )
-
     def test_repository_is_first_pull_request_compared_to_not_none(self) -> None:
         repo = RepositoryFactory(
             author=self.owner,

graphql_api/types/repository/repository.py

@@ -266,9 +266,18 @@ def resolve_is_first_pull_request(
     repository: Repository, info: GraphQLResolveInfo
 ) -> bool:
     try:
-        # SELECT "pull_requests"."id" FROM "pull_requests" WHERE "pull_requests"."repoid" = 1 ORDER BY "pull_requests"."pullid" DESC LIMIT 2
-        pull_requests = repository.pull_requests.values("id")[:2]
-        return len(pull_requests) == 1
+        # Get at most 2 PRs to determine if there's only one
+        # SELECT "pull_requests"."id", "pull_requests"."compared_to" FROM "pull_requests" WHERE "pull_requests"."repoid" = 1 ORDER BY "pull_requests"."pullid" DESC LIMIT 2
+        pull_requests = repository.pull_requests.values("id", "compared_to")[:2]
+        
+        # Not first PR if there are multiple or 0 PRs
+        if len(pull_requests) != 1:
+            return False
+
+        # For single PR, check if it's a valid first PR by verifying no compared_to
+        first_pr = pull_requests[0]
+        return first_pr["compared_to"] is None
+
     except Exception as e:
         log.error(
             "Error checking is_first_pull_request",