Merge branch 'master' into monika_linking

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/views/collections/CollectionStackingViewFieldColumn.tsx b/src/client/views/collections/CollectionStackingViewFieldColumn.tsx
index f30e99362..bc4fe7dd7 100644
--- a/src/client/views/collections/CollectionStackingViewFieldColumn.tsx
+++ b/src/client/views/collections/CollectionStackingViewFieldColumn.tsx
@@ -2,7 +2,7 @@ import React = require("react");
 import { library } from '@fortawesome/fontawesome-svg-core';
 import { faPalette } from '@fortawesome/free-solid-svg-icons';
 import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
-import { action, observable } from "mobx";
+import { action, observable, trace } from "mobx";
 import { observer } from "mobx-react";
 import { Doc, WidthSym } from "../../../new_fields/Doc";
 import { Id } from "../../../new_fields/FieldSymbols";