No DjVu thumbnails in version 42.2
I noticed this change when comparing the Fedora 36 Beta with 36 proper. Here is a link to the sample DjVu file I tested: https://filesamples.com/samples/document/djvu/sample2.djvu
evince-thumbnailer 41.3 (present in the Beta) displayed a thumbnail fine in Files. evince-thumbnailer 42.2 (the current version in Fedora 36) displays no thumbnail preview although Evince can open the file fine.
If you would like more details of my system or testing please let me know. Thanks.