On Repo Deletion: Delete related TrackedTimes too (#11110)

models/repo.go

@@ -1614,6 +1614,11 @@ func DeleteRepository(doer *User, uid, repoID int64) error {
 		return err
 	}
 
+	if _, err = sess.In("issue_id", deleteCond).
+		Delete(&TrackedTime{}); err != nil {
+		return err
+	}
+
 	attachments = attachments[:0]
 	if err = sess.Join("INNER", "issue", "issue.id = attachment.issue_id").
 		Where("issue.repo_id = ?", repoID).