This time with a test to support the need for it.
Fixes IE9, IE10 clone bug and adds test
Fix #12127. IE9/10 checks fall off the box on clone. Close gh-873.
Thanks @danielchatfield ! 🌟 BTW, branch off your master with git checkout -b branchname then make the pull request from the branch. Otherwise, your master will be out of sync with jquery master. It took me several months of messing with git/github before I got it all right.
git checkout -b branchname
Revert "Fix #12127. IE9/10 checks fall off the box on clone. Close gh…
This reverts commit 569d064.
Causing test fails in Safari, IE6, and IE7.