$ git clone -n https://src.fedoraproject.org/rpms/perl-Sys-CPU.git /var/lib/mock/f38-build-side-42-init-devel-582314-26072/root/chroot_tmpdir/scmroot/perl-Sys-CPU
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-582314-26072/root/chroot_tmpdir/scmroot/perl-Sys-CPU'...
$ git fetch origin 82a921f587cc8d7e00457151efd5b7de5bf18c0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Sys-CPU
 * [new ref]         82a921f587cc8d7e00457151efd5b7de5bf18c0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82a921f Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild