$ git clone -n http://fedora.riscv.rocks:3000/rpms/zig.git /var/lib/mock/f41-build-855750-167366/root/chroot_tmpdir/scmroot/zig
Cloning into '/var/lib/mock/f41-build-855750-167366/root/chroot_tmpdir/scmroot/zig'...
$ git fetch origin 7d8edf4b4ef9acb255244f7a46601bbc56724a91:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/zig
 * [new ref]         7d8edf4b4ef9acb255244f7a46601bbc56724a91 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d8edf4 Bootstrap (riscv64)