fix: make Langflow-synced flows visible (lfx volume perms, pull dedup)

backend/tests/test_sync.py

@@ -176,6 +176,31 @@ async def test_sync_endpoint_pulls_from_langflow_then_syncs(
     assert body["skipped"] == ["gehaltserh-hung"]
 
 
+async def test_sync_endpoint_pull_reuses_same_named_file(
+    client, lfx_server, tmp_path, monkeypatch, login, override_langflow
+):
+    """A pulled flow seeded from simple_rule.json updates it in place
+    instead of duplicating it as simple-rule.json (slug drift)."""
+    await login()
+    monkeypatch.setattr(settings, "flows_dir", str(tmp_path))
+    _seed_dir(tmp_path)  # fixture shape, name "simple_rule"
+    langflow_id = "44444444-5555-4666-8777-888888888888"
+    override_langflow(
+        flows=[{"id": langflow_id, "name": "simple_rule"}],
+        docs={langflow_id: _langflow_doc("simple_rule", langflow_id)},
+    )
+    response = await client.post("/api/flows/sync")
+    assert response.status_code == 200, response.text
+    body = response.json()
+    assert body["pulled"] == ["simple_rule"]
+    assert body["added"] == ["simple_rule"]
+    assert body["errors"] == {}
+    assert not (tmp_path / "simple-rule.json").exists()
+
+    response = await client.post("/api/flows/sync")
+    assert response.json()["skipped"] == ["simple_rule"]
+
+
 async def test_sync_endpoint_pull_error_continues(
     client, lfx_server, tmp_path, monkeypatch, login, override_langflow
 ):