cleanup

frontend/src/documents/DocumentSummarySection.tsx

@@ -495,7 +495,7 @@ const DocumentSummarySection: React.FC<DocumentSummarySectionProps> = ({
   const extraSummaryRows = useMemo(() => {
     const rows: DocumentSummaryRow[] = [];
     const currentVersionNumber = document?.current_version?.version_number;
-    if (Number.isFinite(currentVersionNumber)) {
+    if (currentVersionNumber != null) {
       rows.push({
         key: 'current-version',
         label: 'Current version',

frontend/src/documents/SelectionFloatingActions.tsx

@@ -349,9 +349,7 @@ const SelectionFloatingActions: React.FC<SelectionFloatingActionsProps> = ({
 
   const documentCount = documentIdList.length;
   const folderCount = folderIdList.length;
-  const totalCount = Number.isFinite(selectionCount)
-    ? Number(selectionCount)
-    : documentCount + folderCount;
+  const totalCount = selectionCount ?? documentCount + folderCount;
 
   const selectedDocuments = useMemo<DocumentLike[]>(() => {
     if (!documentIdList.length || !(documentLookupMap instanceof Map)) {