$ git clone -n https://src.fedoraproject.org/rpms/kstart.git /var/lib/mock/f40-build-800570-143605/root/chroot_tmpdir/scmroot/kstart
Cloning into '/var/lib/mock/f40-build-800570-143605/root/chroot_tmpdir/scmroot/kstart'...
$ git fetch origin f7158e1bbbb4a7b2ae1c4545ec31f805ad34efd6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kstart
 * [new ref]         f7158e1bbbb4a7b2ae1c4545ec31f805ad34efd6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7158e1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild