David Bremner <david@tethera.net> writes: > In principle this should work, but at least in some pre-release > versions of emacs26, this causes problems inside lexical let [1]. > > [1]: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=26406 pushed to master (some time ago). In the meantime, also fixed upstream for the next major release of emacs. d