Best Practice for Deploying Patches

We have several process models in our Production environment that list an individual user as the process owner. We've changed our practice since they were initially deployed, using only a service account (i.e., Appian.Aministrator) for deployments but the process owner value has not changed even when patches were deployed that modified these process models. Do we need to export the processes using the Appian.Administrator account and then re-import them in order to change the process owner? Please advise. I don't want to risk having these processes fail if the listed process owner account becomes deactivated.

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