fixed breaking smoothness of closed curve at 0/last index. fixed highlighting closed curves.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/client/views/InkStrokeProperties.ts b/src/client/views/InkStrokeProperties.ts
index ac5cdfee2..d5033f44b 100644
--- a/src/client/views/InkStrokeProperties.ts
+++ b/src/client/views/InkStrokeProperties.ts
@@ -339,8 +339,10 @@ export class InkStrokeProperties {
             const inkCopy = ink.slice();
             inkCopy[handleIndex] = newHandlePoint;
             const brokenIndices = Cast(doc.brokenInkIndices, listSpec("number"));
+            const equivIndex = closed ? (controlIndex === 0 ? ink.length - 1 : controlIndex === ink.length - 1 ? 0 : -1) : -1;
             // Rotate opposite handle if user hasn't held 'Alt' key or not first/final control (which have only 1 handle).
-            if ((!brokenIndices || !brokenIndices?.includes(controlIndex)) && (closed || (handleIndex !== 1 && handleIndex !== ink.length - 2))) {
+            if ((!brokenIndices || (!brokenIndices?.includes(controlIndex) && !brokenIndices?.includes(equivIndex))) &&
+                (closed || (handleIndex !== 1 && handleIndex !== ink.length - 2))) {
                 const angle = this.angleChange(oldHandlePoint, newHandlePoint, controlPoint);
                 inkCopy[oppositeHandleIndex] = this.rotatePoint(oppositeHandlePoint, controlPoint, angle);
             }