- do not call set_expanded when the parent does not
have that attribute, this is the case in the custom
abacus Palette in the Abacus activity
- add the same code in the button release event callback
that we have as well in the click event callback
Signed-off-by: Simon Schampijer <simon@laptop.org>
Acked-by: Manuel Quiñones <manuq@laptop.org>