Fix IE10 bug when cloning an object element without a parentNode
Manual merge after fetch upstream
Fix weird clone bug and add a unit test to verify
Updated the comment above the fix
Add support check, added assertion to check if cleared, add edge case for backgroundPosition
Remove test file that I didn't mean to get into the previous commit
Do not watch the dist files to make infinite change loops less common.
Update Sizzle: Use tokenization rather than regex for grouping. Fixes #12237, #12205, #12285.
Update Sizzle: passing null to $.contains should not throw an error. Fixes #12314
Sizzle: fix compilation of the same selector with different contexts. Fixes #12403.
Sizzle: make html from assertions xhtml compliant. Fixes #12359.
Sizzle: provide backwards-compatibility for creating custom pseudos with arguments. Fixes #12409.
Update Sizzle: size reduction, -85 bytes
Update authors.
Fix #12313, .height()/.width() just use CSS if no offsetWidth. Close gh-909.
Fix #12383. All selectors should be delegateTarget-relative
Update placeholder references to tickets.
Reverting Sizzle is bad, Dave.
Fix #12347 and #12384. Use a fresh div in jQuery.clean each time.

Regression was introduced in 22ad8723ce07569a9b039c7901f29e86ad14523c most likely because the clown who fixed http://bugs.jquery.com/ticket/4011 didn't add a unit test.
Sizzle: use tokenization to complex check pseudo arguments. Fixes #12412.