[GREENFOOT-550] Autocompletion doesn't work properly on variable assignment
If you press '=', type the variable name, go to the 'new-value' field, and call the autocompletion, backspece will erase the 'new-value' field and the '<=' symbol, but the autocompletion list will still be displayed. The debuglog also shows a NPE.
- Issue type: Bug
- Priority: Medium
- Fix versions: 3.1.0