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    59fe11e7
    o This fixes Bug#122135 from the Debian bug-tracking system: The setf · 59fe11e7
    pmai authored
      function for LISP:FIND-CLASS now accepts and ignores the optional
      errorp and environment arguments, as per ANSI.
    o It now also allows nil as the new-value, as per ANSI, and
      dissociates any defined class from the given name.  Note that this
      only works as expected if the user also does a setf of PCL::FIND-CLASS
      with NIL.  LISP:FIND-CLASS and PCL::FIND-CLASS need tighter
      integration.
    59fe11e7
    History
    o This fixes Bug#122135 from the Debian bug-tracking system: The setf
    pmai authored
      function for LISP:FIND-CLASS now accepts and ignores the optional
      errorp and environment arguments, as per ANSI.
    o It now also allows nil as the new-value, as per ANSI, and
      dissociates any defined class from the given name.  Note that this
      only works as expected if the user also does a setf of PCL::FIND-CLASS
      with NIL.  LISP:FIND-CLASS and PCL::FIND-CLASS need tighter
      integration.