To replicate the bug:
- Create a new place, and choose a location with fewer avaliable data sources than where you are now.
- See the list of data sources, compare to what you see in compare graphs mode. Should match.
- Edit place and enable travel mode.
- Again see the list of data sources, compare to what you see in compare graphs mode. Now the list of data sources is longer, but the list of graps in compare graphs mode is not.