Defer Sharing Calculation - Scratch org issue?

According to Salesforce this is a somewhat cumbersome two way step where using this org feature needs to be accompanied with a second manual step:

Enabling the Defer Sharing Rule Calculation feature typically requires two steps - contacting Salesforce support and then enabling the feature in the UI (https://help.salesforce.com/articleView?id=security_sharing_rule_recalculation.htm&type=5). It appears that the scratch feature "DeferSharingRecalc" is helping with the first step but it requires the user to provision the appropriate permission and then Suspend, Resume or Recalculate sharing rules in the UI.

See github issues