Trac #30311: apply set_immutable to all chart functions

sagemath · Jan 21, 2021 · 6f39d6e · 6f39d6e
1 parent 848e96b
commit 6f39d6e
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/sage/manifolds/scalarfield.py b/src/sage/manifolds/scalarfield.py
@@ -3605,6 +3605,8 @@ def set_immutable(self):
         """
         for rst in self._restrictions.values():
             rst.set_immutable()
+        for func in self._express.values():
+            func.set_immutable()
         super().set_immutable()
 
     @cached_method