Backwards compat fix for ReactCurrentDispatcher on older react versions#14770

Merged

bvaughn merged 2 commits intofacebook:masterfrom bvaughn:current-owner-ref

Feb 6, 2019

+9

Commits on Feb 6, 2019

Add current owner ref fallback for newer renderers with older react versions
Brian Vaughn
committed
Replaced current owner forward with current:null
Brian Vaughn
committed