only update `contributionRecur` when `templateContribution` is updated IF it is actively marked as such
In https://github.com/civicrm/civicrm-core/pull/21473 code was added to update the Currency and Amount of the template contribution is updated. However, the code appears to me to be too aggressive and updating the amount or currency of ANY contribution in the series causes it to update. There are good reasons to update individual contributions without any implicit template update.