Fix ERC777 potential reentrancy issues#2483

Merged

frangio merged 4 commits intoOpenZeppelin:masterfrom frangio:fix-777-reentrancy

Jan 26, 2021

+50-2

Commits on Jan 20, 2021

fix relative order of hooks in ERC777.burn
frangio
committed

Commits on Jan 22, 2021

remove .only in tests
frangio
authored

Commits on Jan 25, 2021

lint
frangio
committed
add changelog entry
frangio
committed