$ git clone -n https://gitee.com/wenyuzifang/at-spi2-core.git /var/lib/mock/dist-an23-build-465976-73955/root/chroot_tmpdir/scmroot/at-spi2-core
Cloning into '/var/lib/mock/dist-an23-build-465976-73955/root/chroot_tmpdir/scmroot/at-spi2-core'...
$ git fetch origin b6615d5b9247fd68b4197a3124871afb19a90798:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/at-spi2-core
 * [new ref]         b6615d5b9247fd68b4197a3124871afb19a90798 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b6615d5 Update code from upstream