$ git clone -n https://src.fedoraproject.org/rpms/perl-Alien-Brotli.git /var/lib/mock/f40-build-779029-130154/root/chroot_tmpdir/scmroot/perl-Alien-Brotli
Cloning into '/var/lib/mock/f40-build-779029-130154/root/chroot_tmpdir/scmroot/perl-Alien-Brotli'...
$ git fetch origin a2084b256354cb58b095b5afae5605dcdb466bb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Alien-Brotli
 * [new ref]         a2084b256354cb58b095b5afae5605dcdb466bb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2084b2 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild