Make saved search emails work with custom search form

When loading a saved search from an email, the following function is called

_getSavedSearchForm: function() {
        if (!this._routedSearch) {
          return null;
        }
        return this.$$('nuxeo-search-form[provider="' + this._routedSearch.properties['saved:providerName'] + '"]');
      } 

If using a custom search form, nothing loads from link provided in email because nuxeo-search-form is hardcoded in the function.

Steps to reproduce:
Requirements: must be using custom search form

1. Login to Nuxeo webUI.
2. Click on Search from sidebar.
3. Search for some document.
4. Click “Save as” your search.
5. Now open saved search from drop down.
6. Click more button and click share.
7. Inside Permission defined locally, add an internal user to access the shared search with read/Edit/Manage Everything permission.
8. Once recipient receives the mail, click on the link and see if shared search is visible or not.
   Actual Result:
   Once clicked the link received in the email, opens a blank page.

Expected Result:
Should display the shared saved search.

If you manually change the name from nuxeo-search-form to the name of your custom search form, the page loads.