Arc's Stroke width changes when Hide is checked and then unchecked, it should remain the same

For Arc component, when "Hide" is checked and unchecked, the value of Stroke width set before this step changes.

EDIT : The same thing happened with Pie too.

(1) set Stroke width to 30

(2) check Hide(at this point the Stroke width is set -1 somehow

(3) uncheck Hide -> Stroke width becomes 4. I think the value should remain the same, in this case 30.