$ git clone -n https://src.fedoraproject.org/rpms/libtar.git /var/lib/mock/f41-build-826017-154851/root/chroot_tmpdir/scmroot/libtar
Cloning into '/var/lib/mock/f41-build-826017-154851/root/chroot_tmpdir/scmroot/libtar'...
$ git fetch origin 8d2711be577a4f07c128e07cd1dad53979d60ac7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtar
 * [new ref]         8d2711be577a4f07c128e07cd1dad53979d60ac7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d2711b Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild