1 files changed, 9 insertions, 0 deletions
diff --git a/src/client/views/collections/CollectionTimeView.tsx b/src/client/views/collections/CollectionTimeView.tsx
index d6398fda5..e63ea7151 100644
--- a/src/client/views/collections/CollectionTimeView.tsx
+++ b/src/client/views/collections/CollectionTimeView.tsx
@@ -235,6 +235,7 @@ export class CollectionTimeView extends CollectionSubView() {
 
 ScriptingGlobals.add(function pivotColumnClick(pivotDoc: Doc, bounds: ViewDefBounds) {
     let prevFilterIndex = NumCast(pivotDoc._prevFilterIndex);
+    const originalFilter = StrListCast(ObjectField.MakeCopy(pivotDoc._docFilters as ObjectField));
     pivotDoc["_prevDocFilter" + prevFilterIndex] = ObjectField.MakeCopy(pivotDoc._docFilters as ObjectField);
     pivotDoc["_prevDocRangeFilters" + prevFilterIndex] = ObjectField.MakeCopy(pivotDoc._docRangeFilters as ObjectField);
     pivotDoc["_prevPivotFields" + prevFilterIndex] = pivotDoc._pivotField;
@@ -249,5 +250,13 @@ ScriptingGlobals.add(function pivotColumnClick(pivotDoc: Doc, bounds: ViewDefBou
                 pivotDoc._pivotField = filterVals[0];
             }
         }
+        const newFilters = StrListCast(pivotDoc._docFilters);
+        if (newFilters.length && originalFilter.length &&
+            newFilters[newFilters.length - 1] === originalFilter[originalFilter.length - 1]) {
+            pivotDoc._prevFilterIndex = --prevFilterIndex;
+            pivotDoc["_prevDocFilter" + prevFilterIndex] = undefined;
+            pivotDoc["_prevDocRangeFilters" + prevFilterIndex] = undefined;
+            pivotDoc["_prevPivotFields" + prevFilterIndex] = undefined;
+        }
     });
 });
 \ No newline at end of file