Infinite ajax call on Entity Reference element

I can't reproduce this. Can you determine the steps to reproduce so we can build a site that shows the bug?

Steps:

1. Enable Webform UI module
2. Go to webforms
3. Go to webform "Contact" - /admin/structure/webform/manage/contact
4. Click "Add element"
5. Chose "Entity select"
6. Try to change the value of the field "Type of item to reference" or "Reference method"

I've attached a video

I could not reproduce the bug. I did the following:

1. Built a site with Webform 6.3.x on https://simplytest.me.
2. Followed the steps in comment #3.

Have you been able to reproduce the bug on a newly-installed site?

Because you have a site that exhibits this bug, we need additional information from you about how to go about reproducing it.

Hm, sorry guys, it is my bad, on clear installation all work fine, so it isn't related to your module. I will close the ticket. Thanks for your answers and your time!

It could be related to this module. But we need more information to know.

I found a reason of this bug on y instance, but I think it will also be useful for Webform maintainers - the core class DefaultSelection.php provides some states for sort and direction fields, but it uses next names - :input[name^="settings[handler_settings][...], but in WebformEntityReferenceTrait.php we have :input[name^="properties[selection_settings] so this states aren't work, and it should be override.

We continue needing steps to reproduce.

Steps:

1. Install profile - "Social" →
2. Install and enable Webform UI module
3. Go to webforms
4. Go to webform "Contact" - /admin/structure/webform/manage/contact
5. Click "Add element"
6. Chose "Entity select"
7. Try to change the value of the field "Type of item to reference" or "Reference method"

Please put the patch into an issue fork and merge request.

Thanks. Still needs tests.