$ git clone -n https://src.fedoraproject.org/rpms/rust-tpm2-policy.git /var/lib/mock/f38-build-side-42-init-devel-1396021-31050/root/chroot_tmpdir/scmroot/rust-tpm2-policy
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1396021-31050/root/chroot_tmpdir/scmroot/rust-tpm2-policy'...
$ git fetch origin f46253e4095de70bb62d1be2d08ee2a25f7795bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tpm2-policy
 * [new ref]         f46253e4095de70bb62d1be2d08ee2a25f7795bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f46253e Rebuild for tss-esapi 7.2.0