Among the 6 debian patches available in version 2.91+ds-1 of the package, we noticed the following issues:
commit 95b54e41f98a3da6d455875e1ca7702b2f49e46c Author: Hilmar Preuße <hille42@web.de> Date: Thu Sep 5 00:09:08 2024 +0200 Another fix for d/copyright.