Candidates are not displayed just by turning on snapping

[Gear maker]

In 1.7.0.3 when snapping is turned on the candidates are not shown until something is done to the drawing to force an update such as a click, pan, etc.  Likewise when snapping is turned off the same type of update has to be made to force the hiding of the candidates.  All other versions this did not require a second trigger to cause the update of the screen.  Is this intentional? 

I sometimes just toggle snapping using the hotkey " ; " to display the hidden edges of an object.  This can't be done any longer.

[MEB]

Thanks Gear maker. Issue logged to be looked at.