Extending a selection when an element that is not a CR is selected before
Steps to reproduce:
1. Open Promenade
2. Select a articulation symbol.
3. Shift select a measure
Expected: Not sure, probably a range selection including only the measure.
Result: Last element in measure is highlighted, but it does not have a range box around it. The highlighting does not disappear after after deselecting.
Same goes for shift selecting a chord rest, but the chord rest is highlighted.
OS: Debian Jessie