[QGIS-Developer] Understanding the mixed values widget option in multi-edit attributes

[DelazJ]

Hi devs,

When using the multi-edit attributes tool from the Attribute table dialog,
if a field contains different values for the selected features, the widget
beside the field is yellow and offers a drop-down button.
clicking the button shows "Set <myfield> for all selected features" option.
What does that do?
Afaict, selecting it clears the field value (set to NULL). Is that the
purpose ? in which case could the label be more explicit e.g.:
- Set <myfield> to NULL for all selected features
- Clear <myfield> for all selected features

Or did I miss something?

Thanks,
Harrissou
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20170601/7fd86082/attachment.html>