$ git clone -n https://src.fedoraproject.org/rpms/emacs-magit.git /var/lib/mock/f40-build-2435220-60776/root/chroot_tmpdir/scmroot/emacs-magit
Cloning into '/var/lib/mock/f40-build-2435220-60776/root/chroot_tmpdir/scmroot/emacs-magit'...
$ git fetch origin 83e9a3a02789bc7a2cb9f84c93198866cc0025f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-magit
 * [new ref]         83e9a3a02789bc7a2cb9f84c93198866cc0025f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83e9a3a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild