Don't let all <thead> checkboxes to function as selector

[Cimmo]

In my plugin: Cimy User Extra Fields I use checkboxes on <thead> but unclukily one function in common.js is picking up any click coming from any checkbox from <thead> and <tfoot>

Since I think this is too much, we can maybe take only the one from '.check-column' if this doesn't break anything else.

Here is my patch, please review it and let me know.

[Cimmo]

Patch to solve this issue, to be QAed for regressions

[scribu]

You can condense that into .find('.check-column:checkbox').

[scribu]

Rather: .find('.check-column :checkbox')

[Cimmo]

I never used JQuery in my life, I just used my common sense and it fixed the issue. The condensed version looks even better if it works the same, but yes the point is, please apply the patch if you like it.

[scribu]

Replying to Cimmo:

I never used JQuery in my life, I just used my common sense and it fixed the issue.

Very good. :)

[scribu]

(In [15743]) More specific selector for checkbox columns. Props Cimmo for initial patch. Fixes #15051