399d21bea0a7c1b105af6e901e2178e175bb17d7,core/kernel/source/jetbrains/mps/smodel/adapter/structure/link/SContainmentLinkAdapter.java,SContainmentLinkAdapter,isOptional,#,55

Before Change



  @Override
  public boolean isOptional() {
    return getLinkDescriptor().isOptional();
  }

  @Override

After Change



  @Override
  public boolean isOptional() {
    LinkDescriptor ld = getLinkDescriptor();
    if (ld == null) return true;

    return ld.isOptional();
  }