[Link] Fix SIGSEGV with LinkCopyOnChange=Tracking

2024-03-12 21:47:07 +01:00
parent 5fc907d797
commit 6cec876a41
1 changed files with 6 additions and 0 deletions
--- a/src/App/Link.cpp
+++ b/src/App/Link.cpp
@@ -319,6 +319,12 @@ App::DocumentObjectExecReturn *LinkBaseExtension::extensionExecute() {
            syncCopyOnChange();
        }

+        // the previous linked object could be deleted by syncCopyOnChange - #12281
+        linked = getTrueLinkedObject(true);
+        if(!linked) {
+            return new App::DocumentObjectExecReturn("Error in processing variable link");
+        }
+
        PropertyPythonObject *proxy = nullptr;
        if(getLinkExecuteProperty()
                && !boost::iequals(getLinkExecuteValue(), "none")