Added caching to the first element in dirNodeCheck and dirCheck when searching for the previous sibling. (Patch by LosTFx - had to apply manually, did not apply cleanly.)
Added caching to the first element in dirNodeCheck and dirCheck when searching for the previous sibling. (Patch by LosTFx - had to apply manually, did not apply cleanly.)

npmcomponent/cristiandouce-sizzle,mzgol/sizzle,digitarald/sly,digitarald/sly