Merge pull request #4538 from node-red/4533-fix-subflow-instance-g-property-mapping

Ensure subflow instance node has g property set

packages/node_modules/@node-red/runtime/lib/flows/Subflow.js

@@ -212,6 +212,7 @@ class Subflow extends Flow {
         var subflowInstanceConfig = {
             id: this.subflowInstance.id,
             type: this.subflowInstance.type,
+            g: this.subflowInstance.g,
             z: this.subflowInstance.z,
             name: this.subflowInstance.name,
             wires: [],