Section 117. Legislative intent

In  so far as this article, as added by
  chapter  eight  hundred  forty-one  of  the  laws  of  nineteen  hundred
  forty-seven,  as  amended  by  chapter five hundred three of the laws of
  nineteen  hundred  forty-eight,  as  amended  by  chapter  six   hundred
  forty-eight of the laws of nineteen hundred forty-nine, or as amended by
  this  act relates to rights to membership in or to rights or benefits of
  members of the retirement system, it is the intent of the legislature to
  codify the provisions of former articles four  and  five  of  the  civil
  service  law  which  relate thereto and which were in effect immediately
  prior thereto. No diminution or impairment,  within  the  provisions  of
  article  five,  section seven of the state constitution, and no increase
  of such rights or benefits is intended to be effectuated by this article
  as so added or amended. If, in codifying the provisions of  such  former
  articles four and five, this article as so added or amended:
    1. Omits any provision of such articles which is not obsolete, has not
  expired,  or  has  not  been  superseded  or  specifically  or impliedly
  repealed, or
    2.  Incorporates  any  provision  of  such  articles  which  has  been
  superseded or specifically or impliedly repealed, or
    3. Incorporates any new provision which is not, in effect, a revision,
  consolidation, codification, continuance or restatement of provisions of
  such articles or of other applicable provisions of law,
  relative  to rights to membership in or to rights or benefits of members
  of the retirement system, such omission or incorporation shall be deemed
  an inadvertence or error. The right to rectify any such inadvertence  or
  error at any time is hereby reserved.