$ git clone -n https://src.fedoraproject.org/rpms/grantleetheme.git /var/lib/mock/f40-build-804405-144515/root/chroot_tmpdir/scmroot/grantleetheme
Cloning into '/var/lib/mock/f40-build-804405-144515/root/chroot_tmpdir/scmroot/grantleetheme'...
$ git fetch origin f242a40479f50b2ca59403c4ff42e07e4b376830:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grantleetheme
 * [new ref]         f242a40479f50b2ca59403c4ff42e07e4b376830 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f242a40 24.02.1