$ git clone -n https://gitee.com/panxuefeng-loongson/java-11-openjdk_1.git /var/lib/mock/dist-an23-build-320025-67886/root/chroot_tmpdir/scmroot/java-11-openjdk_1
Cloning into '/var/lib/mock/dist-an23-build-320025-67886/root/chroot_tmpdir/scmroot/java-11-openjdk_1'...
$ git fetch origin c86bb1ef69430becea426f5a8e41d8c4aa9cada9:KOJI_FETCH_HEAD
From https://gitee.com/panxuefeng-loongson/java-11-openjdk_1
 * [new ref]         c86bb1ef69430becea426f5a8e41d8c4aa9cada9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c86bb1e exclude some arches