Fixes #13551. Guard against illegal data access by undefined elem-owner

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Make data test titles more consistent and accurate

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Merge remote-tracking branch 'upstream/master' into bug_13514
Fixes #13571. jQuery.isPlainObject 1.9.x compatibility

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
Revert 8d1c42296fefc4e79189b6c2d78a8a78fdd9576d
Merge branch 'master', remote-tracking branch 'upstream' into bug_13514
Preserve the behavior for select-multiple while fixing this issue