Fix repository version listing after version deletion

fixes: #9481
fixes: #8798

CHANGES/8798.bugfix

@@ -0,0 +1 @@
+Fix content summary showing incorrect count after previous version deletion.

CHANGES/9481.bugfix

@@ -0,0 +1 @@
+Fixed issue with listing repository versions after deleting previous versions.

pulpcore/app/models/repository.py

@@ -909,6 +909,9 @@ def _squash(self, repo_relations, next_version):
         repo_relations.filter(version_added=self).update(version_added=next_version)
         repo_relations.filter(version_removed=self).update(version_removed=next_version)
 
+        # Update next version's counts as they have been modified
+        next_version._compute_counts()
+
     def delete(self, **kwargs):
         """
         Deletes a RepositoryVersion

pulpcore/tests/functional/api/using_plugin/test_repo_versions.py

@@ -357,12 +357,16 @@ def test_delete_last_version(self):
 
     def test_delete_middle_version(self):
         """Delete a middle version."""
-        index = randint(1, len(self.repo_version_hrefs) - 2)
+        index = randint(1, len(self.repo_version_hrefs) - 3)
         delete_version(self.repo, self.repo_version_hrefs[index])
 
         with self.assertRaises(HTTPError):
             get_content(self.repo, self.repo_version_hrefs[index])
 
+        # Check added count is updated properly
+        added = get_added_content_summary(self.repo, self.repo_version_hrefs[index + 1])
+        self.assertEqual(added["file.file"], 2)
+
         for repo_version_href in self.repo_version_hrefs[index + 1 :]:
             artifact_paths = get_artifact_paths(self.repo, repo_version_href)
             self.assertIn(self.content[index]["artifact"], artifact_paths)