diff --git a/app/Console/Commands/DemoSeederCommand.php b/app/Console/Commands/DemoSeederCommand.php
index c2025185..477e02b6 100644
--- a/app/Console/Commands/DemoSeederCommand.php
+++ b/app/Console/Commands/DemoSeederCommand.php
@@ -222,6 +222,7 @@ EINCIDENT;
         ];
 
         Incident::truncate();
+        IncidentUpdate::truncate();
 
         foreach ($defaultIncidents as $defaultIncident) {
             $incident = Incident::create($defaultIncident);
diff --git a/app/Settings/Repository.php b/app/Settings/Repository.php
index 6b398bce..4f3fdcd9 100644
--- a/app/Settings/Repository.php
+++ b/app/Settings/Repository.php
@@ -26,7 +26,7 @@ class Repository
      *
      * @var string[]
      */
-    const NOT_BOOL = [
+    protected $notBooleans = [
         'app_incident_days',
     ];
 
@@ -154,7 +154,7 @@ class Repository
             return $value;
         }
 
-        if (!in_array($key, self::NOT_BOOL) && in_array($value, ['0', '1'])) {
+        if (!in_array($key, $this->notBooleans) && in_array($value, ['0', '1'])) {
             return (bool) $value;
         }