Warning is missing that metada and ACL cannot be edited while job is processing.

Steps to reproduce:
1. Upload a video
2. Open the event details for this video, while it is still in processing

Actual Results:
It seems like you can change all the data, but it has no effect, as the endpoints where the changed data is send to refuse service.

Expected Results:
Like in 2.1 a warning message that the events is currently processing and that data cannot be changed.

Workaround (if any):