Created attachment 11880 [details] Patch to fix spelling "optomise" -> "optimise". I'm leaving the most-of-the-English-speaking-world spelling unmodified.
This appears to have been fixed in 8a691e5aff59fe5a152791c3f2a658fefa9f3dc8, albeit with the spelling of "optimi{s,z}ed" Americanized in that change. :-)
Moving PIDL bugs into Samba as we do not release PIDL separately.