$ git clone -n http://fedora.riscv.rocks:3000/rpms/ffmpeg.git /var/lib/mock/f41-build-860024-168750/root/chroot_tmpdir/scmroot/ffmpeg
Cloning into '/var/lib/mock/f41-build-860024-168750/root/chroot_tmpdir/scmroot/ffmpeg'...
$ git fetch origin e14b58798b41103a8d521cda2f3d5bb2f3ed5d2f:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/ffmpeg
 * [new ref]         e14b58798b41103a8d521cda2f3d5bb2f3ed5d2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e14b587 Bootstrap (riscv64)