Select2 is not working in opened modal by default

[cotur]

When I want to make a selectbox in modal to searchable with Select2 it does not work. It looks like disabled, doesn't accept any writing.

The solution is changing the modal contructor prototype by the following code:
$.fn.modal.Constructor.prototype._enforceFocus = function () { };
select2/select2#1436 (comment)
https://select2.org/troubleshooting/common-problems

we should inspect and find possible effects by changing this prototype. If it does not occurs any problem, we can implement this in framework layer.

[maliming]

We can consider adding a js file select2-bootstrap-modal-patch.js.
Add this js to Select2ScriptContributor, if this causes other problems, the developer can remove it.

$.fn.modal.Constructor.prototype._enforceFocus = function () { };