Refer to the correct action - it's the update action, in the special case where we want to render the edit view.

This reverts commit 6641bf87.

This reverts commit 79380395.

This reverts commit 79a06225.

This reverts commit 16a23a18.

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

this can provide a significant performance boost during testing, by
preventing the GC from running too frequently.

this prevents test state from accumulating, resulting in leaked
objects and slow tests due to overactive GC.

* template_error:
  Ensure original exception message is present in both Template::Error#message and Template::Error#inspect.
  ActiveSupport::Deprecation.silence no longer needed.