Start a game with the Constellation playership.
Fire weapons to reduce fuel to a level that refueling requires more than one fuel rod.
Navigate to the refueling screen.
Enter '1' in the screen counter.
Within a few seconds the screen counter will automatically reset to the maximum amount.

This behavior not seen in EI500, Osaka or Taipan GodShip.

EDIT:Also seen in an EI200 playership with an auton bay fitted so it might be the auton bay causing it.
2nd EDIT: This is really annoying! It also affects the Commodities Sell dockscreen.

george moromisato 15 Jun 2021:

Fixed in 1.9 Beta 4. Thanks!