Fix bug in BNF ID validation

tests/MDNodaRepositoryTest.php

@@ -62,6 +62,17 @@ public static function bneIdForValidationProvider():Generator {
 
     }
 
+    /**
+     * Data provider for validating BNE IDs.
+     *
+     * @return Generator<string, array{0: string|false, 1: string}>
+     */
+    public static function bnfIdForValidationProvider():Generator {
+
+        yield "Broken input / duplicate https" => [false, "https://catalogue.bnf.fr/ark:/12148/cbhttps://catalogue.bnf.fr/ark:/12148/cbhttps://catalogue.bnf.fr/ark:/12148/cb104183522"];
+
+    }
+
     /**
      * Ensure validating references to the BNE works.
      *