From 14b8bca34a42a70958a3a627c59dda633757fd23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Laura=20Kl=C3=BCnder?= <laura@codingcatgirl.de>
Date: Fri, 13 Dec 2024 11:25:10 +0000
Subject: [PATCH] don't let as_operations run amok

---
 src/c3nav/editor/changes.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/c3nav/editor/changes.py b/src/c3nav/editor/changes.py
index abf6cf68..a58b7a3d 100644
--- a/src/c3nav/editor/changes.py
+++ b/src/c3nav/editor/changes.py
@@ -576,7 +576,13 @@ class ChangedObjectCollection(BaseSchema):
             # nothing to do? then we're done
             done_situation = start_situation
 
+        num = 0
+
         while open_situations and not done_situation:
+            num += 1
+            if num > 1000:
+                raise ValueError("as_operations might be in an endless loop")
+
             situation = open_situations.pop(0)
 
             continued = False