After user specifies an advanced filter in Task inbox on task field 'name', there's extended list of available columns to be enabled.
Between 7.2 and 7.3 there's been a change that I can't track against any other issue between now and then.

In 7.3 the columns Skippable and GroupId are not anymore among the available columns.

I am marking this as regression, unless we can track the change in another issue targeted against 7.3.