Unset changes to crate's documenation

Author: Douman

app/routes/crate/version.js

@@ -15,6 +15,7 @@ export default Route.extend({
     async model(params) {
         const requestedVersion = params.version_num === 'all' ? '' : params.version_num;
         const crate = this.modelFor('crate');
+        const original_docs = crate.get('documentation');
         const controller = this.controllerFor(this.routeName);
         const maxVersion = crate.get('max_version');
 
@@ -81,6 +82,8 @@ export default Route.extend({
         }
 
         controller.set('crate', crate);
+        crate.set('documentation', original_docs);
+
         controller.set('requestedVersion', requestedVersion);
         controller.set('fetchingFollowing', true);