Separated raw from normalized LCCN.

module/VuFind/src/VuFind/RecordDriver/DefaultRecord.php

@@ -585,17 +585,25 @@ class DefaultRecord extends AbstractBase
     }
 
     /**
-     * Get a LCCN, normalised according to info:lccn
+     * Get a raw, unnormalized LCCN. (See getLCCN for normalization).
      *
      * @return string
      */
-    public function getLCCN()
+    protected function getRawLCCN()
     {
         // Get LCCN from Index
-        $raw = isset($this->fields['lccn']) ? $this->fields['lccn'] : '';
+        return isset($this->fields['lccn']) ? $this->fields['lccn'] : '';
+    }
 
+    /**
+     * Get a LCCN, normalised according to info:lccn
+     *
+     * @return string
+     */
+    public function getLCCN()
+    {
         // Remove all blanks.
-        $raw = preg_replace('{[ \t]+}', '', $raw);
+        $raw = preg_replace('{[ \t]+}', '', $this->getRawLCCN());
 
         // If there is a forward slash (/) in the string, remove it, and remove all
         // characters to the right of the forward slash.