GraphQL: ring groups: Can't set needConf ("Confirm Calls")

[bitbanger]

FreePBX Distro 15.0.37

I’m trying to update a ring group in GraphQL Explorer. The update and the reload both return “success” but in the FreePBX Admin GUI “Confirm Calls” is still set to “No”. All of the other fields show the requested updates. I confirmed with a test call that “Confirm Calls” is indeed turned off. Is this a bug or am I doing something wrong? Thanks!

Here are my sanitized GraphQL scripts:

mutation{
  updateRingGroup(input:{
    groupNumber:290
    description:"Internal ext210 and cell phone"
    extensionList:"210-12125551212#"
    strategy:"ringall"
    needConf:true
    }) {
    message status
  }
}

mutation {
  doreload(input: {}) {
    message
    status
    transaction_id
  }
}