$ git clone -n https://src.fedoraproject.org/rpms/perl-BSON.git /var/lib/mock/f38-build-side-42-init-devel-882368-28486/root/chroot_tmpdir/scmroot/perl-BSON
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-882368-28486/root/chroot_tmpdir/scmroot/perl-BSON'...
$ git fetch origin a664874a40ace2925538a9188163a867a5de9642:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-BSON
 * [new ref]         a664874a40ace2925538a9188163a867a5de9642 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a664874 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild