$ git clone -n https://src.fedoraproject.org/rpms/kf5-kinit.git /var/lib/mock/f38-build-729659-101821/root/chroot_tmpdir/scmroot/kf5-kinit
Cloning into '/var/lib/mock/f38-build-729659-101821/root/chroot_tmpdir/scmroot/kf5-kinit'...
$ git fetch origin 2dbb1e91a834b3eaaf6d78a7c9e725d7a2fe68bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kinit
 * [new ref]         2dbb1e91a834b3eaaf6d78a7c9e725d7a2fe68bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2dbb1e9 5.107.0