repositories added with apt::ppa are purged by apt

[maxadamo]

Describe the Bug

I have set these options:

class { 'apt':
  purge  => {
    'sources.list'   => true,
    'sources.list.d' => true,
  }
}

then I add:

apt::ppa { 'ppa:deadsnakes/ppa': }

the repo name is taken here: deadsnakes-ppa

and every time Puppet runs the repo is added and then it's removed, again and again.

Expected Behavior

it should not purge the repository added through apt::ppa

Steps to Reproduce

see above

Environment

• puppetlabs/apt version: 9.0.0
• puppet agent and server version: 7.xx
• Platform: Ubuntu 20.04

Additional Context

N/A

[kenyon]

Duplicate of #1064.

[maxadamo]

solved by #1069