Fetch issued when removing columns with column picker

Hi Isomorphic,

in my application (latest 5.0p) I noticed that for some column-hiding actions, fetch requests are issued. You can reproduce in this online showcase sample.

• Open Developer Console, show RPC requests
• Open sample
• One request (rows 0-75) is issued
• Open column picker context menu
• Hide columns country, capital
• Another request (rows 75-216) is issued

From reading the docs I'm pretty sure that this is related to ListGrid.setDrawAllMaxCells() and is perhaps on purpose, but I'm not sure that this was also meant to trigger fetches.

Best regards,
Blama