Autorefresh equation linked dimensions to driven dimensions

Hi,

I drew this exmple:

The left dimension is marked as driven and the right dimension is linked to the left one. When I'm manually changing the left angle the second angle doesn't change. The only way I've found to refresh my sketch is to quit sketch edition and edit it again.

Does anybody knows how to auto refresh linked dimension ?

Thank you in advance

SolidworksSketching