BUG: GA doesn't have "contribute" privileges to converted VC to knowledge-base

[Comoque1]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Go to ACC env
2. Convert a VC

mutation convertVirtualContributorToUseKnowledgeBase(
  $conversionData: ConversionVcSpaceToVcKnowledgeBaseInput!
) {
  convertVirtualContributorToUseKnowledgeBase(conversionData: $conversionData) {
    id
    nameID
    knowledgeBase {
      calloutsSet {
        id
      }
      profile {
        storageBucket {
          documents {
            id
            url
          }
        }
      }
    }
  }
}

3. Add a callout of of any contribution type it is migrated
4. Make a contribution to the callout - error is thrown: "message": "Authorization: unable to grant 'contribute' privilege: create contribution on callout: e7073f8b-5c46-484d-9d06-5d832d2392b4 user: 60eb77d9-1043-4567-a67f-e3b4f94fb7db on authorization 12b0849f-4972-4997-a15b-0d4cb3d0f29e of type 'callout'",

Expected behavior
GA can contribute to the converted VC
Who else should have rights to contribute?