$ git clone -n https://src.fedoraproject.org/rpms/rubygem-activerecord.git /var/lib/mock/f40-build-2367002-60380/root/chroot_tmpdir/scmroot/rubygem-activerecord
Cloning into '/var/lib/mock/f40-build-2367002-60380/root/chroot_tmpdir/scmroot/rubygem-activerecord'...
$ git fetch origin 52ed318507f62d9d040cba36c92c3776e4509f2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-activerecord
 * [new ref]         52ed318507f62d9d040cba36c92c3776e4509f2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52ed318 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild