more fixes in edge cases

Author: Logo121

packages/font-glyphs/src/letter/latin/w.ptl

@@ -270,13 +270,13 @@ glyph-block Letter-Latin-W : begin
 
 		local YShape : NonCursiveYShapeT straightBar bottomShape { false doSlabBottom false } l r (l + df.leftSB) df.mvs
 		local YShapeRight : YShape.RightHalf 0 1 # = TS-NONE SHRINK-INNER
-		include : YShape.SmallYShape top Descender (df.mvs / 2)
+		include : YShape.SmallYShape top Descender df.mvs
 
 		eject-contour 'leftHalf'
 
 		include : difference
 			WShapeImpl df top wBodyType wSlabType MIDH-TOP
-			intersection [MaskBelow : top - df.mvs] [MaskAbove : Descender + df.mvs] : YShapeRight.splitMask top Descender
+			intersection [MaskBelow : top / 2] [MaskAbove : Descender + df.mvs] : YShapeRight.splitMask top Descender
 
 		eject-contour 'strokeUp2'