Changing hook height for Voltas in general settings doesn't work

In MuseScore 2.0.3 and 2.1 changing the value of hook height in style->general...->hairpins, volta, ottava doesn't have any effect. It works for ottava.

In master it doesn't seems to be implemented in general.

Note: it works via right click->line properties... (2.0.3 and 2.1)