$ git clone -n https://src.fedoraproject.org/rpms/qpdf.git /var/lib/mock/f40-build-791684-137680/root/chroot_tmpdir/scmroot/qpdf
Cloning into '/var/lib/mock/f40-build-791684-137680/root/chroot_tmpdir/scmroot/qpdf'...
$ git fetch origin 392227900507cb1e6ce2b7b446f41546a03c8964:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qpdf
 * [new ref]         392227900507cb1e6ce2b7b446f41546a03c8964 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3922279 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild