This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
If the site_settings import has any errors or settings that are not found, this
will cause the task to exit with a non-zero exit code.
This is useful when using this task as part of automated configuration deployment,
where you may not want to continue with the process if a setting fails to
import.
