fix object fwd growth

source/quickjs.c

@@ -1475,6 +1475,9 @@ static int rec_resize (JSContext *ctx, JSValue *pobj, uint64_t new_mask) {
     }
   }
 
+  /* Install forward header at old location so stale references can find the new record */
+  rec->mist_hdr = objhdr_make_fwd (new_rec);
+
   /* Update caller's JSValue to point to new record */
   *pobj = JS_MKPTR (new_rec);