Merge pull request #2230 from alexlarsson/pull-dont-save-passed-in-summary

pull: Don't save into cache passed in GByte summaries

src/libostree/ostree-repo-pull.c

@@ -4545,7 +4545,7 @@ ostree_repo_pull_with_options (OstreeRepo             *self,
             }
         }
 
-      if (!summary_from_cache && bytes_summary && bytes_sig)
+      if (!summary_from_cache && bytes_summary && bytes_sig && summary_sig_bytes_v == NULL)
         {
           if (!pull_data->remote_repo_local &&
               !_ostree_repo_cache_summary (self,