$ git clone -n https://src.fedoraproject.org/rpms/eggdrop.git /var/lib/mock/f41-build-1020585-18013/root/chroot_tmpdir/scmroot/eggdrop
Cloning into '/var/lib/mock/f41-build-1020585-18013/root/chroot_tmpdir/scmroot/eggdrop'...
$ git fetch origin 18eec0bfd9fef718b688b46b80a78beef8b0eb0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/eggdrop
 * [new ref]         18eec0bfd9fef718b688b46b80a78beef8b0eb0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18eec0b Eliminate use of obsolete %patchN syntax (#2283636)