This has to be simple... I'm trying to preserve the current date that is already stored in an updated_at field in the DB.
I'm updating a single field value in the same row and then saving but I don't want it to update the updated_at field. I want to preserve the existing updated_at value.

I only want to do this in one, maybe two situations so I don't need to overwrite the model for every other action in the program.

I've tried this:

$originalDate = $this->getUpdatedAt();
$this->setUpdatedAt($originalDate);
$this->save();

This seems like it should work but still it seems to update the field.