Add root object to object path for legacy context menu actions

src/adapter/actions/LegacyContextMenuAction.js

@@ -33,9 +33,13 @@ export default class LegacyContextMenuAction {
     }
 
     invoke(objectPath) {
+        this.openmct.objects.getRoot().then((root) => {
+            let pathWithRoot = objectPath.slice();
+            pathWithRoot.push(root);
+
             let context = {
                 category: 'contextual',
-            domainObject: this.openmct.legacyObject(objectPath)
+                domainObject: this.openmct.legacyObject(pathWithRoot)
             }
             let legacyAction = new this.LegacyAction(context);
 
@@ -47,6 +51,7 @@ export default class LegacyContextMenuAction {
                 }.bind(legacyAction);
             }
             legacyAction.perform();
+        });
     }
 
     appliesTo(objectPath) {