$ git clone -n https://src.fedoraproject.org/rpms/libei.git /var/lib/mock/f41-build-1266635-23069/root/chroot_tmpdir/scmroot/libei
Cloning into '/var/lib/mock/f41-build-1266635-23069/root/chroot_tmpdir/scmroot/libei'...
$ git fetch origin 18fdce87f4a19a1d887f9e662a95522f0cc2d287:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libei
 * [new ref]         18fdce87f4a19a1d887f9e662a95522f0cc2d287 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18fdce8 Update libei.spec (typo)