Pattern Input Mask (9999) doesn't allow entering values when textUpdateMode is set to "onTyping"

[JaneSjs]

It is impossible to enter any value when the survey.textUpdateMode setting is set to "onTyping". The problematic survey JSON:

{
 "pages": [
  {
   "name": "page1",
   "elements": [
    {
     "type": "text",
     "name": "question1",
     "maskType": "pattern",
     "maskSettings": {
      "pattern": "9999"
     }
    }
   ]
  }
 ],
 "textUpdateMode": "onTyping"
}

A screencast:

2024-05-28_14-28-13.mp4