$ git clone -n https://src.fedoraproject.org/rpms/kf6-kdav.git /var/lib/mock/f42-build-side-1-3588566-46947/root/chroot_tmpdir/scmroot/kf6-kdav
Cloning into '/var/lib/mock/f42-build-side-1-3588566-46947/root/chroot_tmpdir/scmroot/kf6-kdav'...
$ git fetch origin ce16137b6bf609aa4f9cbddc442456a409759442:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kdav
 * [new ref]         ce16137b6bf609aa4f9cbddc442456a409759442 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce16137 6.16.0