message: Fix visual block mode not updating multicursor selection
diff: @@ -602,7 +602,8 @@ export class ModeHandler implements vscode.Disposable {
  return;
  }
  - if (e.selections.length !== this.vimState.allCursors.length || this.vimState.isMultiCursor) {
  + if ((e.selections.length !== this.vimState.allCursors.length || this.vimState.isMultiCursor) &&
  + this.vimState.currentMode !== ModeName.VisualBlock) {
  // Number of selections changed, make sure we know about all of them still
  this.vimState.allCursors = vscode.window.activeTextEditor!.selections.map(x =>
  new Range(Position.FromVSCodePosition(x.start), Position.FromVSCodePosition(x.end)));
  