Update the height only after processing all the change events (#42317)

src/vs/editor/common/viewLayout/viewLayout.ts

@@ -75,15 +75,12 @@ export class ViewLayout extends Disposable implements IViewLayout {
 	}
 	public onFlushed(lineCount: number): void {
 		this._linesLayout.onFlushed(lineCount);
-		this._updateHeight();
 	}
 	public onLinesDeleted(fromLineNumber: number, toLineNumber: number): void {
 		this._linesLayout.onLinesDeleted(fromLineNumber, toLineNumber);
-		this._updateHeight();
 	}
 	public onLinesInserted(fromLineNumber: number, toLineNumber: number): void {
 		this._linesLayout.onLinesInserted(fromLineNumber, toLineNumber);
-		this._updateHeight();
 	}
 
 	// ---- end view event handlers

src/vs/editor/common/viewModel/viewModelImpl.ts

@@ -231,6 +231,7 @@ export class ViewModel extends viewEvents.ViewEventEmitter implements IViewModel
 					}
 				}
 				this.lines.acceptVersionId(versionId);
+				this.viewLayout.onHeightMaybeChanged();
 
 				if (!hadOtherModelChange && hadModelLineChangeThatChangedLineMapping) {
 					eventsCollector.emit(new viewEvents.ViewLineMappingChangedEvent());