I want to know the answer to the following question:
Who replaced Nishonov?
All the background I'm provided with is that "Thousands of Soviet troops were sent to the Fergana Valley, southeast of the Uzbek capital Tashkent, to re-establish order after clashes in which local Uzbeks hunted down members of the Meskhetian minority in several days of rioting between June 4–11, 1989; about 100 people were killed.". Is that enough to answer the question?
Answer: no