[fix] Sync with reactjs.org @ 1f2dbb7a#286

Merged

gcor merged 4 commits intoreactjs:sync-1f2dbb7afrom

gcor:sync-1f2dbb7a

Apr 1, 2019

Commits on Mar 24, 2019

[ru.reactjs.org] fix sync conflicts
gcor
committed

Commits on Mar 30, 2019