$ git clone -n https://src.fedoraproject.org/rpms/libsolv.git /var/lib/mock/f45-build-17007-495/root/chroot_tmpdir/scmroot/libsolv
Cloning into '/var/lib/mock/f45-build-17007-495/root/chroot_tmpdir/scmroot/libsolv'...
$ git fetch origin 941a0e3b6bdf97d8015b6d26cb2cf16e6360f833:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsolv
 * [new ref]         941a0e3b6bdf97d8015b6d26cb2cf16e6360f833 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 941a0e3 Move from automatic release numbering to manual one