#68 GET gets out of sync

[Dan Julio]

Version 0.23 : GET image doesn't update display until next time GET is pressed.

This one seems hard to reproduce. I was in the following loop until I got it to fail.

1. GET image
2. Go to Settings and toggle Manual Range
3. Go to Camera and GET image
4. Go to Settings and toggle Manual Range
5. Repeat

When it starts failing you'll see the image doesn't update after a GET. However the next time you click GET the image is immediately updated (from the previous GET's image).