$ git clone -n http://fedora.riscv.rocks:3000/rpms/gprbuild.git /var/lib/mock/f42-build-867376-175454/root/chroot_tmpdir/scmroot/gprbuild
Cloning into '/var/lib/mock/f42-build-867376-175454/root/chroot_tmpdir/scmroot/gprbuild'...
$ git fetch origin 96a68320e1f76781f34f9eef53bfb733526798ff:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gprbuild
 * [new ref]         96a68320e1f76781f34f9eef53bfb733526798ff -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96a6832 Bootstrap (riscv64)