Express Selector Attribute Broken

[john-everden]

On 8.5.4 the express attribute appears broken for us. If you add the attribute to a page, do not make a selection and come back to the attributes section again there is no way to pick a selection.

Example - https://i.imgur.com/tMDCfxY.png

It appears in concrete/attributes/express/form.php
if (isset($entity, $entry) && $entity instanceof Entity && $entry instanceof Entry) {

That if statement causes the control not to render if a value is not selected. Removing the if statement appears to work for me.

[hissy]

It already fixed in #8749