$ git clone -n https://gitee.com/lvfeicaiji_admin/java-1.8.0-alibaba-dragonwell.git /var/lib/mock/dist-an23-build-330979-69493/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell
Cloning into '/var/lib/mock/dist-an23-build-330979-69493/root/chroot_tmpdir/scmroot/java-1.8.0-alibaba-dragonwell'...
$ git fetch origin 4255dbd8b21a583fb05f756b18d3ce8ab7a9214f:KOJI_FETCH_HEAD
From https://gitee.com/lvfeicaiji_admin/java-1.8.0-alibaba-dragonwell
 * [new ref]         4255dbd8b21a583fb05f756b18d3ce8ab7a9214f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4255dbd Remove all patches