$ git clone -n http://fedora.riscv.rocks:3000/rpms/ghc-aeson.git /var/lib/mock/f40-build-777599-129415/root/chroot_tmpdir/scmroot/ghc-aeson
Cloning into '/var/lib/mock/f40-build-777599-129415/root/chroot_tmpdir/scmroot/ghc-aeson'...
$ git fetch origin c43235273eb90aa84c045ec7135886e52fdb4673:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/ghc-aeson
 * [new ref]         c43235273eb90aa84c045ec7135886e52fdb4673 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c432352 Rebuilt for Fedora/RISCV (riscv64); adding .rvreX to Release: