Only blur project membership inputs.

Fixes bug 1038562.

Change-Id: I3767c0004890bc1ea29273e807a6f7122f571f8e

horizon/static/horizon/js/horizon.projects.js

@@ -411,7 +411,7 @@ horizon.projects = {
         $(".tab-content, .workflow").addClass("dropdown_fix");
 
         // unfocus filter fields
-        $("input").blur();
+        $("#update_project__update_members input").blur();
 
         // prevent filter inputs from submitting form on 'enter'
         $('.project_membership').keydown(function(event){