$ git clone -n https://github.com/fedora-riscv/crun.git /var/lib/mock/f40-build-2501390-61672/root/chroot_tmpdir/scmroot/crun
Cloning into '/var/lib/mock/f40-build-2501390-61672/root/chroot_tmpdir/scmroot/crun'...
$ git fetch origin 099a21c892103c5ab40beb18c52cfa4dfd29ff15:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/crun
 * [new ref]         099a21c892103c5ab40beb18c52cfa4dfd29ff15 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 099a21c Add riscv64 support.