Need confirmation about non-clearing of Character Styles

Sinds all or editors use LO 3.6.2 (before OO3.3)

We have complains about the fact that parts of the text, who are 
formated with a Character Style, can not been "cleared" to no-formating,
not by "Clear formating"
not by "Clear Direct Formating (cntrl+M)"

There is a dirty work-around by applying the "Default" character style

Paragraph Styles can been cleared....
Is this intentional behavior or a regression open for a issue ?

Greetz

Fernand