"Extra properties" field being displayed in alerts regardless of integration settings

Issue Summary

When setting up a create alert action for an integration, even if the "Details" field is left empty, with no properties mapped, if the alert payload comes with the "Details" field, these will still be displayed in the alert inside the "Extra Properties".

Steps to Reproduce

1. Configure integration with create alert action, leave "Details" empty
2. Send alert creation payload to the integration, containing the "Details" field

Expected Results

If the field is configured to be empty with no values mapped, nothing should be displayed

Actual Results

All the values from the details field of the payload are displayed in the alert as extra properties

Workaround

Currently, the workaround is to delete the extra properties from the alert manually or via the API endpoint:

https://docs.opsgenie.com/docs/alert-api-continued#remove-details-custom-properties-from-alert