"Keep Last 1" not working when updating mods

[wispborne]

https://wisp-gn.sentry.io/issues/feedback/?alert_rule_id=16379525&alert_timestamp=1767732253267&alert_type=email&environment=production&feedbackSlug=trios%3A7168715212&notification_uuid=357ce06b-84ea-4745-997e-5824da54a0c6&project=4507579574648832

[wispborne]

It keeps the one previously-installed mod, so that you have one backup plus the current version.