2 files changed, 4 insertions, 3 deletions
diff --git a/src/fields/Proxy.ts b/src/fields/Proxy.ts
index 55d1d9ea4..c076f5fe1 100644
--- a/src/fields/Proxy.ts
+++ b/src/fields/Proxy.ts
@@ -1,5 +1,5 @@
 import { Deserializable } from '../client/util/SerializationHelper';
-import { FieldWaiting, Opt } from './Doc';
+import { Field, FieldWaiting, Opt } from './Doc';
 import { primitive, serializable } from 'serializr';
 import { observable, action, runInAction, computed } from 'mobx';
 import { DocServer } from '../client/DocServer';
@@ -39,7 +39,7 @@ export class ProxyField<T extends RefField> extends ObjectField {
     }
 
     [ToScriptString]() {
-        return 'invalid';
+        return Field.toScriptString(this[ToValue](undefined)?.value); // not sure this is quite right since it doesn't recreate a proxy field, but better than 'invalid' ?
     }
     [ToString]() {
         return 'ProxyField';
diff --git a/src/fields/util.ts b/src/fields/util.ts
index e3d1abc53..e439768ee 100644
--- a/src/fields/util.ts
+++ b/src/fields/util.ts
@@ -433,7 +433,8 @@ export function updateFunction(target: any, prop: any, value: any, receiver: any
                                   lastValue = ObjectField.MakeCopy(receiver[prop]);
                               },
                               prop: 'assign list',
-                          }
+                          },
+                    diff?.items
                 );
         }
         target[Update](op);