Fix custom object with circular dependencies were no longer disabled in the new object dialog

newIDE/app/src/AssetStore/NewObjectFromScratch.js

@@ -201,7 +201,6 @@ export default function NewObjectFromScratch({
               eventsBasedObject
             );
           }
-          // $FlowFixMe[incompatible-type]
           return {
             type: object.type,
             fullName: object.fullName,

newIDE/app/src/AssetStore/ObjectListItem.js

@@ -79,7 +79,8 @@ export const ObjectListItem = ({
     );
   };
 
-  const isEnabled = isEngineCompatible;
+  const isEnabled =
+    isEngineCompatible && !objectShortHeader.isDependentWithParent;
 
   const chooseObject = React.useCallback(
     () => {
@@ -165,6 +166,25 @@ export const ObjectListItem = ({
                   </IconButton>
                 </Tooltip>
               )}
+              {objectShortHeader.isDependentWithParent && (
+                <Tooltip
+                  title={
+                    <Trans>
+                      This object can't be used here because it would create a
+                      circular dependency with the object being edited.
+                    </Trans>
+                  }
+                >
+                  <span>
+                    <Chip
+                      size="small"
+                      label={<Trans>No cycle</Trans>}
+                      variant="outlined"
+                      onClick={() => {}}
+                    />
+                  </span>
+                </Tooltip>
+              )}
             </LineStackLayout>
             <Text
               noMargin

newIDE/app/src/AssetStore/ObjectStoreContext.js

@@ -361,6 +361,8 @@ export const ObjectStoreStateProvider = ({
               requiredExtensions: repositoryObjectMetadata.requiredExtensions,
 
               // Attributes from the installed extension
+              isDependentWithParent:
+                installedObjectMetadata.isDependentWithParent,
 
               // These ones are less important but its better to use the icon of
               // the installed extension since it's used everywhere in the editor.

newIDE/app/src/Utils/GDevelopServices/Extension.js

@@ -113,6 +113,13 @@ export type ObjectShortHeader = {
    * @see adaptObjectHeader
    */
   type: string,
+  /**
+   * `true` when using the object would create a dependency cycle with the
+   * edited events-based object.
+   *
+   * This attribute is computed for `installed` extensions.
+   */
+  isDependentWithParent?: boolean,
 };
 
 /**