$ git clone -n https://gitee.com/guost123/blis.git /var/lib/mock/dist-an23-build-490276-74493/root/chroot_tmpdir/scmroot/blis
Cloning into '/var/lib/mock/dist-an23-build-490276-74493/root/chroot_tmpdir/scmroot/blis'...
$ git fetch origin e05fdf5d788fa9bcd299d5231e2b865f268c6ab5:KOJI_FETCH_HEAD
From https://gitee.com/guost123/blis
 * [new ref]         e05fdf5d788fa9bcd299d5231e2b865f268c6ab5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e05fdf5 riscv64: downgrade optimization level to O2