Disabled checkboxes should not be checked

[adrienpoly]

Not sure if it is a bug or feature and what is the recommended behavior for a check-all action when the list of checkboxes includes disabled inputs.

Lets imaging a list of checkboxes some of them are disabled (features locked for a user as an example).

Currently check-all checks all inputs including disabled ones.

I think the expected behavior should be to keep disabled inputs unchanged.