after rails4 merge, thumbail generation for uploaded images fails
I, [2015-11-09T14:02:51.909966 #31613] INFO -- : 2015-11-09T14:02:51-0200: [Worker(delayed_job host:noosfero pid:31613)] Job CreateThumbnailsJob (id=23) RUNNING
E, [2015-11-09T14:02:52.067423 #31613] ERROR -- : 2015-11-09T14:02:52-0200: [Worker(delayed_job host:noosfero pid:31613)] Job CreateThumbnailsJob (id=23) FAILED (0 prior attempts) with ActiveRecord::RecordInvalid: Validation failed: Size can't be blank, Size is not included in the list
I, [2015-11-09T14:03:03.308645 #31613] INFO -- : 2015-11-09T14:03:03-0200: [Worker(delayed_job host:noosfero pid:31613)] Job CreateThumbnailsJob (id=23) RUNNING
E, [2015-11-09T14:03:03.738090 #31613] ERROR -- : 2015-11-09T14:03:03-0200: [Worker(delayed_job host:noosfero pid:31613)] Job CreateThumbnailsJob (id=23) FAILED (1 prior attempts) with ActiveRecord::RecordInvalid: Validation failed: Size can't be blank, Size is not included in the list
E, [2015-11-09T14:03:03.738315 #31613] ERROR -- : 2015-11-09T14:03:03-0200: [Worker(delayed_job host:noosfero pid:31613)] Job CreateThumbnailsJob (id=23) REMOVED permanently because of 2 consecutive failures