Thanks for comments Hieu Huynh.
Based on Mr. Brown's comment, the resolution becomes void upon a point of order being raised at the subsequent meeting. My follow up was question is asking whether in the interim (till this point of order) this special resolution is considered as valid or not.
(Also, Thanks Mr. Brown for the wording in RONR, i saw that section as well but again my question is regarding the interim period until the next meeting (where point of order may be raised).