Force fresh config var [skip ci]

app/Http/Middleware/Installer.php

@@ -54,7 +54,7 @@ class Installer
 
         // older version in config than database?
         $configVersion = intval(config('firefly.db_version'));
-        $dbVersion     = intval(FireflyConfig::get('db_version', 1)->data);
+        $dbVersion     = intval(FireflyConfig::getFresh('db_version', 1)->data);
         if ($configVersion > $dbVersion) {
             Log::warning(sprintf(
                 'The current installed version (%d) is older than the required version (%d). Redirect to migrate routine.', $dbVersion, $configVersion

app/Support/FireflyConfig.php

@@ -77,6 +77,27 @@ class FireflyConfig
         return $this->set($name, $default);
     }
 
+    /**
+     * @param      $name
+     * @param null $default
+     *
+     * @return \FireflyIII\Models\Configuration|null
+     */
+    public function getFresh($name, $default = null)
+    {
+        $config = Configuration::where('name', $name)->first(['id', 'name', 'data']);
+        if ($config) {
+
+            return $config;
+        }
+        // no preference found and default is null:
+        if (null === $default) {
+            return null;
+        }
+
+        return $this->set($name, $default);
+    }
+
     /**
      * @param $name
      * @param $value