inconsistent behaviour of masks in gui
If there are multiple datasets included in an experiment, and a mask in drawn in the detectorscene, then the mask continues to be drawn even when we switch datasets. However, the mask is only applied to the dataset that was active when the mask was drawn. This is inconsistent and confusing behaviour. It should be that either
- All masks visible at all times, and applied to all datasets OR
- Masks are associated to the each dataset, and not to the DetectorScene