$ git clone -n https://src.fedoraproject.org/rpms/rust-psa-crypto-sys.git /var/lib/mock/f40-build-2249008-53975/root/chroot_tmpdir/scmroot/rust-psa-crypto-sys
Cloning into '/var/lib/mock/f40-build-2249008-53975/root/chroot_tmpdir/scmroot/rust-psa-crypto-sys'...
$ git fetch origin 5a3c40f5ed9d8bff612e1fd2d8269034b1ad133c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-psa-crypto-sys
 * [new ref]         5a3c40f5ed9d8bff612e1fd2d8269034b1ad133c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a3c40f Update to 0.10.0