#434

frontend/src/lib/countsDisplay.ts

@@ -454,8 +454,14 @@ export const countsConditionValue = (
     return translateUIMessage ('bot', 'counts', locale).text
   if (value == null) return 'NULL'
   if (axis.field === 'tags' || axis.field === 'user')
-    return labels?.[axis.field]?.[String (value)]
+  {
+    if (labels == null) return '…'
+    const names = labels[axis.field]
+    if (names == null || !Object.prototype.hasOwnProperty.call (names, String (value)))
+      return '—'
+    return names[String (value)]
         || translateUIMessage ('notRegistered', 'counts', locale).text
+  }
   if (axis.field === 'changed_field')
     return translateUIMessage (countsFieldLabel (String (value)), 'counts', locale).text
   if (typeof value === 'boolean')