Property name template not working in unevaluatedProperties

[preeder]

The property name template {0#} works great in additionalProperties, but it does not seem to work in unevaluated properties. For example, the schema:

"actions": { "type": "array", "items": { "type": "object", "unevaluatedProperties": { "not": true, "errorMessage": "Unexpected property {0#} in action object" }, "properties": { "_id": { "type": "string" }, "type": { "enum": [ "booking", "chat" ] }, "className": { "type": "string" }, "cta": { "type": "string" }, "inquiryTypeId": { "type": "string" } }, "required": [ "_id", "type", "className", "cta" ], "oneOf": [ { "$ref": "#/$defs/chatAction" }, { "$ref": "#/$defs/bookingAction" } ] } }

Yields an error like:
{ "instancePath": "/0/guide/actions/1/conversionCode", "schemaPath": "#/properties/actions/items/unevaluatedProperties/errorMessage", "keyword": "errorMessage", "params": { "errors": [ { "instancePath": "/0/guide/actions/1/conversionCode", "schemaPath": "#/properties/actions/items/unevaluatedProperties/not", "keyword": "not", "params": {}, "message": "must NOT be valid", "emUsed": true } ] }, "message": "Unexpected property {0#} in action object" }