Cap-round dashed border doesn't work on a closed geometry

[tinchodias]

Expected (okay in Sparta-Cairo):

Actual (in Alexandrie):

Code:

radius := 50.
borderWidth := 15.
segmentLength := 10.
numberOfDashes := 9.
dashes := { segmentLength. ((Float twoPi * radius) / numberOfDashes) - segmentLength }.

e := BlElement new
	relocate: 20 asPoint;
	size: (radius * 2) asPoint;
	outskirts: BlOutskirts inside;
	geometry: BlCircleGeometry new;
"	geometry: (BlLineGeometry from: 0 asPoint to: 100 asPoint);
--> Open geometry is okay in both canvas"
	outskirts: BlOutskirts centered;
	border: (BlBorder builder
		paint: Color black;
		width: borderWidth;
		dashArray: dashes;
		capRound;
		build);
	yourself.
	
BlSpace new
	addChild: e;
"	host: BlOSWindowSDL2Host new; --> okay in Sparta-Cairo"
	host: BAOSWindowSDL2Host new;	
	show