Merge branch 'master' into aarav_edit

1 files changed, 1 insertions, 1 deletions

diff --git a/src/client/views/collections/CollectionNoteTakingViewColumn.tsx b/src/client/views/collections/CollectionNoteTakingViewColumn.tsx
index f283b0abe..461689a70 100644
--- a/src/client/views/collections/CollectionNoteTakingViewColumn.tsx
+++ b/src/client/views/collections/CollectionNoteTakingViewColumn.tsx
@@ -155,7 +155,7 @@ export class CollectionNoteTakingViewColumn extends ObservableReactComponent<CSV
     // all docs are added to the column directly to the left.
     @undoBatch
     deleteColumn = () => {
-        const colHdrData = Array.from(Cast(this._props.Doc[this._props.fieldKey + '_columnHeaders'], listSpec(SchemaHeaderField), null));
+        const colHdrData = Array.from(Cast(this._props.Doc[this._props.fieldKey + '_columnHeaders'], listSpec(SchemaHeaderField), [])!);
         if (this._props.headingObject) {
             //          this._props.docList.forEach(d => (d['$'+this._props.pivotField] = undefined));
             colHdrData.splice(colHdrData.indexOf(this._props.headingObject), 1);