Only mark as seen after having processed

aider_gitea/__main__.py

@@ -186,7 +186,6 @@ def main():
             continue
 
         branch_name = generate_branch_name(issue_number, title)
-        seen_issues_db.mark_as_seen(issue_text)
         try:
             with tempfile.TemporaryDirectory() as tmpdirname:
                 process_issue(args, Path(tmpdirname), branch_name, title, issue_description, issue_number)
@@ -194,5 +193,7 @@ def main():
             logger.exception('Error processing issue')
             sys.exit(1)
 
+        seen_issues_db.mark_as_seen(issue_text)
+
 if __name__ == "__main__":
     main()