$ git clone -n https://src.fedoraproject.org/rpms/butt.git /var/lib/mock/f40-build-2274908-55040/root/chroot_tmpdir/scmroot/butt
Cloning into '/var/lib/mock/f40-build-2274908-55040/root/chroot_tmpdir/scmroot/butt'...
$ git fetch origin 82e4e07841696c044303c4e8a0d9e48c49104df1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/butt
 * [new ref]         82e4e07841696c044303c4e8a0d9e48c49104df1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82e4e07 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild