(1) After the filing of a petition for the creation of a central business improvement district, no petitioner shall be permitted to withdraw his name from it.
(2) No petition with the requisite signatures shall be declared void on account of formal or insubstantial defects.
(3) The governing body, at any time, may permit the petition to be amended to conform to the facts by correcting any errors in the description of the territory or in any other particular.
(4) Similar petitions for the organization of the same district may be filed and together shall be regarded as one petition with the original.
(5) All petitions filed prior to the hearing on the first petition filed shall be considered by the governing body in the same manner as if filed with the first petition placed on file.