$ git clone -n https://gitee.com/src-anolis-os/yarnpkg.git /var/lib/mock/dist-an23-build-341134-69863/root/chroot_tmpdir/scmroot/yarnpkg
Cloning into '/var/lib/mock/dist-an23-build-341134-69863/root/chroot_tmpdir/scmroot/yarnpkg'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/yarnpkg
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a1f8633 update to 1.22.21