$ git clone -n http://fedora.riscv.rocks:3000/rpms/gcc.git /var/lib/mock/f40-build-807801-145272/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/f40-build-807801-145272/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin ed668643aa44afcc88603621a1c8ff88b44a766a:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gcc
 * [new ref]         ed668643aa44afcc88603621a1c8ff88b44a766a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed66864 Bump release