Core: Update expressions on property rename

This includes both expressions in generic containers and in
spreadsheets.

src/App/PropertyExpressionEngine.cpp

@@ -53,6 +53,8 @@ PropertyExpressionContainer::PropertyExpressionContainer()
         inited = true;
         GetApplication().signalRelabelDocument.connect(
             PropertyExpressionContainer::slotRelabelDocument);
+        GetApplication().signalRenameDynamicProperty.connect(
+            PropertyExpressionContainer::slotRenameDynamicProperty);
     }
     _ExprContainers.insert(this);
 }
@@ -75,6 +77,13 @@ void PropertyExpressionContainer::slotRelabelDocument(const App::Document& doc)
     }
 }
 
+void PropertyExpressionContainer::slotRenameDynamicProperty(const App::Property& prop, const char* oldName)
+{
+    for (auto container : _ExprContainers) {
+        container->onRenameDynamicProperty(prop, oldName);
+    }
+}
+
 ///////////////////////////////////////////////////////////////////////////////////////
 
 struct PropertyExpressionEngine::Private
@@ -1208,6 +1217,17 @@ void PropertyExpressionEngine::onRelabeledDocument(const App::Document& doc)
     }
 }
 
+void PropertyExpressionEngine::onRenameDynamicProperty(const App::Property& prop, const char* oldName)
+{
+    ObjectIdentifier oldNameId = ObjectIdentifier(prop.getContainer(), std::string(oldName));
+    ObjectIdentifier newNameId = ObjectIdentifier(prop);
+    const std::map<ObjectIdentifier, ObjectIdentifier> paths = {
+        {oldNameId, newNameId},
+    };
+
+    renameObjectIdentifiers(paths);
+}
+
 void PropertyExpressionEngine::getLinksTo(std::vector<App::ObjectIdentifier>& identifiers,
                                           App::DocumentObject* obj,
                                           const char* subname,