Throw better exception if verifying empty repo #131685
Merged
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Today if you attempt to verify the integrity of a brand-new repository
(no
index-${N}
blob) then it will fail because the repositorygeneration is
-1
which cannot be sent over the wire. But it makes nosense to verify the integrity of such a repository anyway, so with this
commit we fail such requests up-front with a more helpful error message.
Backport of #131677 to
8.19