$ git clone -n https://gitee.com/yan1hcdc/qemu.git /var/lib/mock/dist-an23-build-443250-73188/root/chroot_tmpdir/scmroot/qemu
Cloning into '/var/lib/mock/dist-an23-build-443250-73188/root/chroot_tmpdir/scmroot/qemu'...
$ git fetch origin de4c2f5f3202ae10d5304d52da27747b9345e341:KOJI_FETCH_HEAD
From https://gitee.com/yan1hcdc/qemu
 * [new ref]         de4c2f5f3202ae10d5304d52da27747b9345e341 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de4c2f5 Merge branch 'a23' of gitee.com:src-anolis-os/qemu into a23