diff --git a/packages/netlify-cms-widget-relation/src/RelationControl.js b/packages/netlify-cms-widget-relation/src/RelationControl.js
index 1bc1b14d..1fe5a282 100644
--- a/packages/netlify-cms-widget-relation/src/RelationControl.js
+++ b/packages/netlify-cms-widget-relation/src/RelationControl.js
@@ -54,8 +54,7 @@ export default class RelationControl extends React.Component {
     return (
       this.props.value !== nextProps.value ||
       this.props.hasActiveStyle !== nextProps.hasActiveStyle ||
-      this.props.queryHits !== nextProps.queryHits ||
-      this.props.metadata !== nextProps.metadata
+      this.props.queryHits !== nextProps.queryHits
     );
   }
 
diff --git a/website/content/docs/widgets/relation.md b/website/content/docs/widgets/relation.md
index 784a9705..194fb59e 100644
--- a/website/content/docs/widgets/relation.md
+++ b/website/content/docs/widgets/relation.md
@@ -14,6 +14,7 @@ The relation widget allows you to reference items from another collection. It pr
   - `displayFields`: list of one or more names of fields in the referenced collection that will render in the autocomplete menu of the control. Defaults to `valueField`.
   - `searchFields`: (**required**) list of one or more names of fields in the referenced collection to search for the typed value
   - `valueField`: (**required**) name of the field from the referenced collection whose value will be stored for the relation
+  - `multiple` : accepts a boolean, defaults to `false`
 - **Example** (assuming a separate "authors" collection with "name" and "twitterHandle" fields):
     ```yaml
     - label: "Post Author"