Essentially the law did not make Russian an official language. It left up to the separate regions to decide what language would they like to use as official one

Essentially the law did not make Russian an official language. It left up to the separate regions to decide what language would they like to use as official ones, in addition to Ukrainian. As for the repealing of the law - Rada have done that since it did not correspond to the Constitution of 2004, which they came back to, therefore the law technically became non valid. When Rada repealed the law, they have also announced the immediate plans to propose a new law that will consider interests of all minorities, not just Russian, and will correspond to the new "old" Constitution.