message: Added reference flag property to ISummaryTree
diff: @@ -53,6 +53,9 @@ export interface ISummaryTree {
  // TODO type I can infer from SummaryObject. File mode I may want to directly specify so have symlink+exec access
  tree: { [path: string]: SummaryObject };
  +
  + // Indicates that this tree entry is unreferenced. If this is not present, the tree entry is considered referenced.
  + unreferenced?: true;
  }
  export interface ISummaryCommit {
  