$ git clone -n https://gitee.com/zhangwenlong01/xxhash.git /var/lib/mock/dist-an23.4-build-505810-74842/root/chroot_tmpdir/scmroot/xxhash
Cloning into '/var/lib/mock/dist-an23.4-build-505810-74842/root/chroot_tmpdir/scmroot/xxhash'...
$ git fetch origin 22cb68087ea573c07106709c368b0b591abf50a1:KOJI_FETCH_HEAD
From https://gitee.com/zhangwenlong01/xxhash
 * [new ref]         22cb68087ea573c07106709c368b0b591abf50a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22cb680 rebuild for loongarch64