That's not true. Some parts (e.g. CSS and images) never were open source.
You can read more about why RhodeCode went back to open source (AGPL) here: https://rhodecode.com/blog/113/rhodecode-goes-open-source
You can read more about why RhodeCode went back to open source (AGPL) here: https://rhodecode.com/blog/113/rhodecode-goes-open-source
You're going to need to be more specific than that.