Drupal 8 routes don't rebuild automatically
I use CiviCRM 5.21.1 with Drupal 8.8. Oftentimes, after I upgrade an extension, I have to run this command:
drush ev '\Drupal::service("router.builder")->rebuild();'
My questions are: does this occur automatically for upgrades to CiviCRM itself? It seems like maybe it does. I think, in that case, it should be automatic for extension upgrades, as well.
At the very least this command needs to be documented somewhere. I did a Google search, and all I found was some of my old bug reports!