$ git clone -n https://src.fedoraproject.org/rpms/diffoscope.git /var/lib/mock/f41-build-1164779-21588/root/chroot_tmpdir/scmroot/diffoscope
Cloning into '/var/lib/mock/f41-build-1164779-21588/root/chroot_tmpdir/scmroot/diffoscope'...
$ git fetch origin 8a87964071ffb04945e3c6ad9cdae24e73b4dc93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/diffoscope
 * [new ref]         8a87964071ffb04945e3c6ad9cdae24e73b4dc93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a87964 Rebuilt for Python 3.13