Cannot change flavor on installed dnf module

Puppet Version: 6.11.0
OS Name/Version: CentOS/RHEL/Fedora

Apply the following manifest installing the postgresql module stream with the client flavor/profile:

package {'postgresql':
  ensure   => '9.6',
  flavor   => 'client',
  provider => 'dnfmodule',
}

Apply the following manifest, changing the flavor:

package {'postgresql':
  ensure   => '9.6',
  flavor   => 'server',
  provider => 'dnfmodule',
}

Desired Behavior:

postgres --version should print out the PostgreSQL server version.

Actual Behavior:

postgres does not exist because the installed flavor is still client, not server.

This can be confirmed with: dnf module list --installed