Hi, This is still an issue in stable. Gentoo has a simpler patch [1, also attached for convenience] which also works and seems to not have this issue. Maybe it's worth dropping current patch in favor of the Gentoo one (which is also used by other distributions [2]) and do a stable PU upload.
[1] https://gitweb.gentoo.org/repo/gentoo.git/plain/net-p2p/transmission/files/transmission-3.00-openssl-3.patch [2] https://github.com/NixOS/nixpkgs/pull/216953
transmission-3.00-openssl-3.patch.xz
Description: application/xz
