$ git clone -n https://gitee.com/alpha-wang/hadoop.git /var/lib/mock/dist-an8-epao-build-419262-72885/root/chroot_tmpdir/scmroot/hadoop
Cloning into '/var/lib/mock/dist-an8-epao-build-419262-72885/root/chroot_tmpdir/scmroot/hadoop'...
$ git fetch origin 2cdfb5bf5538136cce39242834bd6ea79ed29d77:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/hadoop
 * [new ref]         2cdfb5bf5538136cce39242834bd6ea79ed29d77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2cdfb5b init to hadoop-3.3.6