$ git clone -n https://src.fedoraproject.org/rpms/python-renderspec.git /var/lib/mock/f40-build-2256781-54292/root/chroot_tmpdir/scmroot/python-renderspec
Cloning into '/var/lib/mock/f40-build-2256781-54292/root/chroot_tmpdir/scmroot/python-renderspec'...
$ git fetch origin b1be4335b4109b6507921ad4daf6336d3fb2d2a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-renderspec
 * [new ref]         b1be4335b4109b6507921ad4daf6336d3fb2d2a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b1be433 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild