$ git clone -n https://src.fedoraproject.org/rpms/butane.git /var/lib/mock/f40-build-2274907-55040/root/chroot_tmpdir/scmroot/butane
Cloning into '/var/lib/mock/f40-build-2274907-55040/root/chroot_tmpdir/scmroot/butane'...
$ git fetch origin ae6d48eb7550e02aaa82e39b5dbd60c69ee22a4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/butane
 * [new ref]         ae6d48eb7550e02aaa82e39b5dbd60c69ee22a4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae6d48e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild