$ git clone -n https://src.fedoraproject.org/rpms/perl-CSS-Tiny.git /var/lib/mock/f40-build-2622271-64853/root/chroot_tmpdir/scmroot/perl-CSS-Tiny
Cloning into '/var/lib/mock/f40-build-2622271-64853/root/chroot_tmpdir/scmroot/perl-CSS-Tiny'...
$ git fetch origin a3dacb7456a609f3bb0c47804725d48a879e0dbc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CSS-Tiny
 * [new ref]         a3dacb7456a609f3bb0c47804725d48a879e0dbc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3dacb7 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild