$ git clone -n https://src.fedoraproject.org/rpms/kget.git /var/lib/mock/f39-build-1759470-41490/root/chroot_tmpdir/scmroot/kget
Cloning into '/var/lib/mock/f39-build-1759470-41490/root/chroot_tmpdir/scmroot/kget'...
$ git fetch origin fce4bf019133554879cbfd1aeccb919dab759dc6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kget
 * [new ref]         fce4bf019133554879cbfd1aeccb919dab759dc6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fce4bf0 23.08.3