Junio C Hamano [off-list ref] writes:
quoted
I think the main complication is that the reachability rules are used
during object transfer.
One should not type after spending 20+ waking hours on plane and
airport. I missed it when I wrote my first response, but yes, the
reachability that originates from inside a tree object indeed is a
problem, as we do not dig into trees while doing the want/have/ack
exhange.