title: Pacman upgrade causes conflict with not present packages
body: <p>I'm on Arco Linux(the most basic one).</p>
  <p>I have installed the <code>nodejs</code> package with pacman.</p>
  <p>Now when I run <code>sudo pacman -Su</code> I am getting <code>nodejs-lts-gallium and nodejs are in conflict. Remove nodejs? [y/N].</code>
  But when I run <code>pacman -Qi nodejs-lts-gallium</code>, it says <code>error: package 'nodejs-lts-gallium' was not found</code></p>
  <p><a href="https://i.stack.imgur.com/3afbq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3afbq.png" alt="enter image description here" /></a></p>
  <p>How do I remove the <code>nodejs-lts-gallium</code> artifacts causing the conflict?</p>