Merge pull request #3649 from meganrogge/master

on buffer clear, update markers array once each has been disposed of

src/common/InputHandler.ts

@@ -1218,7 +1218,6 @@ export class InputHandler extends Disposable implements IInputHandler {
       this._activeBuffer.getNullCell(this._eraseAttrData()),
       this._eraseAttrData()
     );
-    this._bufferService.buffer.clearMarkers(y);
     if (clearWrap) {
       line.isWrapped = false;
     }

src/common/buffer/Buffer.ts

@@ -590,11 +590,13 @@ export class Buffer implements IBuffer {
     if (y) {
       for (const marker of this.markers.filter(m => m.line === y)) {
         marker.dispose();
+        this.markers.splice(this.markers.indexOf(marker), 1);
       }
     } else {
       for (const marker of this.markers) {
         marker.dispose();
       }
+      this.markers = [];
     }
     this._isClearing = false;
   }