$ git clone -n https://src.fedoraproject.org/rpms/arc-gui-clients.git /var/lib/mock/f40-build-799983-142740/root/chroot_tmpdir/scmroot/arc-gui-clients
Cloning into '/var/lib/mock/f40-build-799983-142740/root/chroot_tmpdir/scmroot/arc-gui-clients'...
$ git fetch origin 0687dc72a69a17060e3f013cae8e5cafd939d31e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arc-gui-clients
 * [new ref]         0687dc72a69a17060e3f013cae8e5cafd939d31e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0687dc7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild