There is a warning in the Magento2 installation instructions that I don't understand. It says:
If you clone the Magento 2 GitHub repository, you cannot use the Magento software in a production environment. You cannot have a live store that accepts orders and so on.
I'm confused because this is something that I've been doing for the past year and it works, but they say that it
cannot be used.
We cloned the git repo when Magento 2.0.0 came out, and have been updating it and have modified the code extensively by creating dozens of modules. We're now on 2.1.2.
What do they mean with this warning? Is this a license issue/restriction rather than a technical one? What's the reason for this?