$ git clone -n https://src.fedoraproject.org/rpms/zvbi.git /var/lib/mock/f41-build-856607-167689/root/chroot_tmpdir/scmroot/zvbi
Cloning into '/var/lib/mock/f41-build-856607-167689/root/chroot_tmpdir/scmroot/zvbi'...
$ git fetch origin 580382233d00d1c94305dc5dbd2e68288c474ad9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zvbi
 * [new ref]         580382233d00d1c94305dc5dbd2e68288c474ad9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5803822 Update to 0.2.42