when you delete the thumbnails using the minus icon - then the thumbnail plus add thumbnail link stays present #2649 0000978: Thumbnail issues
Fixed the part of resizing, but then there are other bugs (related?) still not solved #2649 0000978: Thumbnail issues
Merge branch 'master' of github.com:GDI-Vlaanderen/geonetwork
Solved all delete thumbnail related problems #2649 0000978: Thumbnail issues