Update packages/core/src/components/fields/ArrayField.tsx

Co-authored-by: Heath C <[email protected]>

Author: nlemoine

packages/core/src/components/fields/ArrayField.tsx

@@ -609,7 +609,7 @@ class ArrayField<T = any, S extends StrictRJSFSchema = RJSFSchema, F extends For
 
     return (
       <Widget
-        id={fieldPathId.$id}
+        id={multiValueFieldPathId.$id}
         name={name}
         multiple
         onChange={this.onSelectChange}