delete key doesn't delete text when the text marker is active, instead the element is deleted

[Ryder17z]

1. Place a clock source
2. Then in the properties for this element, click the text field.
3. Press delete key.
4. Text in field is not removed, instead the clock source is deleted

Expected behavior delete text while in text-edit mode, not delete the selected element

Desktop (please complete the following information): Manjaro Linux