$ git clone -n https://src.fedoraproject.org/rpms/pcc.git /var/lib/mock/f38-build-side-42-init-devel-1083409-29930/root/chroot_tmpdir/scmroot/pcc
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1083409-29930/root/chroot_tmpdir/scmroot/pcc'...
$ git fetch origin 112b03d5ec51ea7ba47ed1abc489e017ad7354c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcc
 * [new ref]         112b03d5ec51ea7ba47ed1abc489e017ad7354c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 112b03d Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild