https://bugs.exim.org/show_bug.cgi?id=2209
--- Comment #1 from firas <firas....@gmail.com> --- Fwiw, I think this could be the optimizer looking for the first non-optional token and starts matching from there, since "(?<=(a))\1?b" works. -- You are receiving this mail because: You are on the CC list for the bug. -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
