Summary:
@public
We're seeing a crash on line 191 when we do `CFRelease(self->_firstTimeReachability);`. My thinking is that there's a race condition between the deallocation coming from calling `getCurrentConnectivity` twice in a row and the callback coming back.
Reviewed By: PeteTheHeat
Differential Revision: D12982772
fbshipit-source-id: d3d882a074b67a5e547e7f480f561fcaf8d79ec4