$ git clone -n https://src.fedoraproject.org/rpms/kf6-kunitconversion.git /var/lib/mock/f42-build-863256-171569/root/chroot_tmpdir/scmroot/kf6-kunitconversion
Cloning into '/var/lib/mock/f42-build-863256-171569/root/chroot_tmpdir/scmroot/kf6-kunitconversion'...
$ git fetch origin f84bde3aa65805a1585321a5e47eb32279b21945:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kunitconversion
 * [new ref]         f84bde3aa65805a1585321a5e47eb32279b21945 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f84bde3 Frameworks 6.9