In a cloud session, the model's standing instructions (the system prompt) include a line describing the synced project. That line now names the synced folder when it is not the same as the project path. In upload-only mode, the line now says the project's "saved edits, new commits and branch switches" reach the session.
Why
The model gets a clearer picture of which folder is synced and which kinds of change it will see, so it is less likely to assume changes it will never receive.