$ git clone -n https://gitee.com/yangcheng1203/libbsd.git /var/lib/mock/dist-an23-build-462965-73836/root/chroot_tmpdir/scmroot/libbsd
Cloning into '/var/lib/mock/dist-an23-build-462965-73836/root/chroot_tmpdir/scmroot/libbsd'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/yangcheng1203/libbsd
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2f93e9b add support for sw_64 build