fix tokenizer misused

tokenizer.json

@@ -201,6 +201,13 @@
           "Regex": "[\u0001‪‫‬‭‎‏‮†“”•–—ž„ˆ‰˜‹Œ️⃣]"
         },
         "content": " "
+      },
+      {
+        "type": "Replace",
+        "pattern": {
+          "Regex": " *<mask> *"
+        },
+        "content": "<mask> "
       }
     ]
   },
@@ -96069,4 +96076,4 @@
       "▁ent ire"
     ]
   }
-}
+}