$ git clone -n http://fedora.riscv.rocks:3000/rpms/gcc.git /var/lib/mock/f40-build-777652-129457/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/f40-build-777652-129457/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin 5e9206f64c7e8a51cc99f9701071eaf94a6c0468:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gcc
 * [new ref]         5e9206f64c7e8a51cc99f9701071eaf94a6c0468 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e9206f Merge remote-tracking branch 'up/main' into main-riscv64