$ git clone -n https://gitee.com/lvfeicaiji_admin/java-1.8.0-alibaba-dragonwell.git /var/lib/mock/dist-an8.8-build-331175-69157/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell
Cloning into '/var/lib/mock/dist-an8.8-build-331175-69157/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell'...
$ git fetch origin bcc64ca1037beaccd1856390a6f1a53ffca8a03a:KOJI_FETCH_HEAD
From https://gitee.com/lvfeicaiji_admin/java-1.8.0-alibaba-dragonwell
 * [new ref]         bcc64ca1037beaccd1856390a6f1a53ffca8a03a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bcc64ca Remove all patches