Question about filtering columns in 78B.

 

This could apply to any filtered columns, but let me provide my specific observation. I have several date columns. I filter the first for a certain date. The second is filtered for Blank. The indicator appears at the bottom of the screen confirming what is being filtered. The column that is filtered on a specific date displays the filter icon but the other column filtering "Blank" has no icon. Shouldn't the icon show?

 

Then I try filtering for blanks in both of the date columns. Now there are no filter icons for both columns but the indicator at the bottom shows both filters are active.

 

To me this appears to be wrong.