ENGCOM-1616: Submitting search form (mini) with enter key fires event handlers bound by jquery twice #15340

 - Merge Pull Request #15340 from amjadm61/magento2:issue-13793
 - Merged commits:
   1. 153faa6

Author: magento-engcom-team

app/code/Magento/Search/view/frontend/web/form-mini.js

@@ -226,6 +226,7 @@ define([
 
                 case $.ui.keyCode.ENTER:
                     this.searchForm.trigger('submit');
+                    e.preventDefault();
                     break;
 
                 case $.ui.keyCode.DOWN: