Hi,
I have two issues with Gedmo behaviors
1) Skipper is not supporting multiple values for Blameable and Translatable behaviors when using type "change"

Current output:
* @Gedmo\Timestampable(on="change", field="order_service_status_key", value="{"realized", "cancelled"}")
Expected output:
* @Gedmo\Timestampable(on="change", field="order_service_status_key", value={"realized", "cancelled"})
2) I'm not able to specify field for association. My field orderservicestatus_key is an association named status for entity with fields key and name. I can change it directly in xml and it works. I would like to set field as "status.key". So proper output from previous example should be:
* @Gedmo\Timestampable(on="change", field="status.key", value={"realized", "cancelled"})
In this github issue was a proper similiar example of using association field (3rd comment, field: status.title):
https://github.com/Atlantic18/DoctrineExtensions/issues/1428
I'm using newest Skipper v3.2.10.1370
EDIT: It works when I name field as "status.key" in Gedmo instead of default orderservicestatus_key. This is acceptable for me, so this bug report is only for multiple values for "change" type.