[Bug]: Failed to execute 'querySelector' on 'Document': '[object HTMLSelectElement]' is not a valid selector

[gabriel-site123]

Bug description

Hey,
Generating select box from parent frame throws js error
Failed to execute 'querySelector' on 'Document': '[object HTMLSelectElement]' is not a valid selector
and tom select fails to convert the select box.

From my investigation it seems like this fails because of this:

Here is reproduction for the bug:

81a9b6496872949d429077c0a1098027.mp4

Expected behavior

Convert the select box

Steps to reproduce

Go to this fiddle and click on Inject Content With Bug
https://jsfiddle.net/gabrielSite123/4so93j0q/39/

Additional context

• OS: Macos Tahoe 26.0.1
• Browser: Chrome
• Version: 141.0.7390.66
• Device: Mac