$ git clone -n https://src.fedoraproject.org/rpms/jd.git /var/lib/mock/f40-build-793351-138816/root/chroot_tmpdir/scmroot/jd
Cloning into '/var/lib/mock/f40-build-793351-138816/root/chroot_tmpdir/scmroot/jd'...
$ git fetch origin ec49aefe34475957639eafd54cbb710c1d606cb3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jd
 * [new ref]         ec49aefe34475957639eafd54cbb710c1d606cb3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec49aef Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild