1 files changed, 4 insertions, 0 deletions
diff --git a/src/fields/util.ts b/src/fields/util.ts
index b73520999..c2ec3f13a 100644
--- a/src/fields/util.ts
+++ b/src/fields/util.ts
@@ -286,6 +286,10 @@ export function distributeAcls(key: string, acl: SharingPermissions, target: Doc
 // target should be either a Doc or ListImpl.  receiver should be a Proxy<Doc> Or List.
 //
 export function setter(target: any, in_prop: string | symbol | number, value: any, receiver: any): boolean {
+    if (!in_prop) {
+        console.log('WARNING: trying to set an empty property.  This should be fixed. ');
+        return false;
+    }
     let prop = in_prop;
     const effectiveAcl = in_prop === 'constructor' || typeof in_prop === 'symbol' ? AclAdmin : GetPropAcl(target, prop);
     if (effectiveAcl !== AclEdit && effectiveAcl !== AclAugment && effectiveAcl !== AclAdmin) return true;