fix: flip default of cancelRemainingInstances

Author: Buckwich

src/provider/bpmn/properties/AdHocCompletionProps.js

@@ -32,7 +32,7 @@ export function AdHocCompletionProps(props) {
     {
       id: 'cancelRemainingInstances',
       component: CancelRemainingInstances,
-      isEdited: (node) => node && !node.checked // the default value is true
+      isEdited: (node) => node && !!node.checked // the default value is false
     },
   ];
 }