Section 91.02. Application of certain amendments, repeals or additions to former mental hygiene law

(a) An act of the legislature of the year in which this act shall have
  become a law which, in form, amends or repeals or purports to  amend  or
  repeal  any provision or provisions of the former mental hygiene law, as
  in force immediately prior to the date that this act shall take  effect,
  shall be legally effective notwithstanding the repeal of such former law
  by  this  act  and shall be construed as an amendment, or repeal, as the
  case may be, of the corresponding provision or provisions  of  this  act
  irrespective  of  whether  such provision or provisions are contained in
  this act in one or more than one article, section, subdivision or  other
  part  thereof  and  such  corresponding provision or provisions shall be
  deemed and construed to be amended, modified,  changed  or  repealed  as
  though the same had been expressly and in terms so amended or repealed.
    (b) An act of the legislature of the year in which this act shall have
  become  a  law  which  adds  or  purports to add a new article, section,
  subdivision or other provision of law to the former mental hygiene  law,
  as in force and effect immediately prior to the date that this act shall
  take  effect,  shall  be legally effective notwithstanding the repeal of
  such former law by this act and shall be construed as having been  added
  to  this  act and shall be given full effect according to its context as
  if the same had been added expressly and in terms to this act and  shall
  be   deemed  and  construed  to  have  been  inserted  in  this  act  in
  juxtaposition to and  as  modifying  the  effect  of  the  corresponding
  provision or provisions of this act.