$ git clone -n https://src.fedoraproject.org/rpms/diff-so-fancy.git /var/lib/mock/f40-build-2276642-55173/root/chroot_tmpdir/scmroot/diff-so-fancy
Cloning into '/var/lib/mock/f40-build-2276642-55173/root/chroot_tmpdir/scmroot/diff-so-fancy'...
$ git fetch origin 20eb7eb4f415f10257c227f216890011d0cc77f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/diff-so-fancy
 * [new ref]         20eb7eb4f415f10257c227f216890011d0cc77f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 20eb7eb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild