Beta 2.0(11): Midi Port not updated in Player

[sunmachine]

To reproduce, try this:

1. Add a MIDI Target to a slot in the Player
2. Assign a MIDI Port to the target
=> CopperLan Manager displays the connection between the target and the MIDI device on the Overview page

3. Empty the slot
4. Drag another target (or the same) to the same slot
=> The MIDI Port is still set to the previous value but there's no connection in the CopperLan Manager

[CopperPhil]

Fixed.