fix: no hash if keyValue is empty

source/text/bracketed-key-value-hash.mjs

@@ -243,5 +243,9 @@ function createBracketedKeyValueHash(object, addHashPrefix = true) {
         }
     }
 
-	return addHashPrefix ? "#" + hashString : hashString;
+    if (hashString.length === 0) {
+        hashString = "#" + hashString;
+    }
+
+    return addHashPrefix ? hashString : hashString;
 }