Beta 1.7.0.251: Clicking a mask layer while holding down "alt" does not bring up the mask edit mode anymore

[altae]

Like mentioned in the title: Clicking on a mask layer (which is assigned as a child to a pixel layer) while holding down "alt" does not bring up the mask edit mode (which shows the mask in grey scale) anymore. Is this change by design or is it a bug?

[HVDB Photography]

t's a known bug.. 

 

[altae]

Thanks for the confirmation