$ git clone -n https://src.fedoraproject.org/rpms/kf5-kdav.git /var/lib/mock/f38-build-729630-101821/root/chroot_tmpdir/scmroot/kf5-kdav
Cloning into '/var/lib/mock/f38-build-729630-101821/root/chroot_tmpdir/scmroot/kf5-kdav'...
$ git fetch origin 204a2db90361a47a0cf92e1db93d068309885310:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kdav
 * [new ref]         204a2db90361a47a0cf92e1db93d068309885310 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 204a2db 5.107.0