stable-sort does not seem to be stable.
GCL (GNU Common Lisp) 2.7.1 Thu Apr 10 09:38:27 PM EDT 2025 ANSI git: Version_2_7_2pre7 Source License: LGPL(gcl,gmp), GPL(unexec,bfd,xgcl) Binary License: GPL due to GPL'ed components: (XGCL READLINE UNEXEC) Modifications of this banner must retain notice of a compatible license Dedicated to the memory of W. Schelter Use (help) to get some basic information on how to use GCL. Temporary directory for compiler files set to /tmp/ >(stable-sort "A1A2A3A4A5A6a1a2a3a4a5a6" #'char-lessp) "112233445566aaaAaAAAaaAA"
