$ git clone -n https://src.fedoraproject.org/rpms/90-Second-Portraits.git /var/lib/mock/f38-build-side-42-init-devel-840800-28411/root/chroot_tmpdir/scmroot/90-Second-Portraits
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-840800-28411/root/chroot_tmpdir/scmroot/90-Second-Portraits'...
$ git fetch origin 5b9141e2567e37c60e6bb9750f55625e063000c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/90-Second-Portraits
 * [new ref]         5b9141e2567e37c60e6bb9750f55625e063000c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b9141e Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild