$ git clone -n https://src.fedoraproject.org/rpms/kcalutils.git /var/lib/mock/f41-build-860494-168951/root/chroot_tmpdir/scmroot/kcalutils
Cloning into '/var/lib/mock/f41-build-860494-168951/root/chroot_tmpdir/scmroot/kcalutils'...
$ git fetch origin fa05986813ed3daa6046e38aa6e42acbb4494552:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kcalutils
 * [new ref]         fa05986813ed3daa6046e38aa6e42acbb4494552 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa05986 24.08.2