How to map path aliases when migrating from Drupal 6 to 8? When migrating from Drupal 6 to 8 i can simply map path aliases with the mapping:

process:
  path: alias


I have the problem that the path alias is not set properly when pathauto is activated for a node-type. The alias always gets generated automatically instead of using the old alias. How can I override this behaviour?
You need to explicitly disable pathauto in your migration:

process:
  path/alias: alias
  path/pathauto:
    plugin: default_value
    default_value: false