$ git clone -n https://src.fedoraproject.org/rpms/dosbox-staging.git /var/lib/mock/f40-build-807658-145240/root/chroot_tmpdir/scmroot/dosbox-staging
Cloning into '/var/lib/mock/f40-build-807658-145240/root/chroot_tmpdir/scmroot/dosbox-staging'...
$ git fetch origin f14378ea70b7909e2db4fa4a4f3901788f6ae1b6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dosbox-staging
 * [new ref]         f14378ea70b7909e2db4fa4a4f3901788f6ae1b6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f14378e Update to version 0.81.0 (rhbz#2259101)