Among the 14 debian patches available in version 5.1.9-1.2 of the package, we noticed the following issues:
commit 5e0029af458f180cdea73593d5e53724d0488a28 Author: Mike Gabriel <mike.gabriel@das-netzwerkteam.de> Date: Wed Apr 9 14:30:10 2025 +0200 debian/patches: add file autofs-5.1.9-Fix-incompatible-function-pointer-types.patch. Forgotten in 166fbe7d Thanks to Vincent Danjean for spotting and reporting this.