Qi Wang 49b7d7f0a4 Passing down the original edata on the expand path.
Instead of passing down the new_addr, pass down the active edata which allows us
to always use a neighbor-acquiring semantic.  In other words, this tells us both
the original edata and neighbor address.  With this change, only neighbors of a
"known" edata can be acquired, i.e. acquiring an edata based on an arbitrary
address isn't possible anymore.
2021-03-29 17:19:53 -07:00
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