GitCode, a git-hosting website operated Chongqing Open-Source Co-Creation Technology Co Ltd and with technical support from CSDN and Huawei Cloud.
It is being reported that many users’ repository are being cloned and re-hosted on GitCode without explicit authorization.
There is also a thread on Ycombinator (archived link)
It’s not about authorization. They want to build a knowledge base for when the Great Firewall gets some more filters. Just like russias mirror of wikipedia which is heavily edited to discredit the west.