$ git clone -n https://gitee.com/alpha-wang/hadoop.git /var/lib/mock/dist-an8-epao-build-422469-72923/root/chroot_tmpdir/scmroot/hadoop
Cloning into '/var/lib/mock/dist-an8-epao-build-422469-72923/root/chroot_tmpdir/scmroot/hadoop'...
$ git fetch origin 776380b615f25bfcc0502764ac5b3ff1c072668e:KOJI_FETCH_HEAD
From https://gitee.com/alpha-wang/hadoop
 * [new ref]         776380b615f25bfcc0502764ac5b3ff1c072668e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 776380b init to hadoop-3.3.6