Rights and Privileges Preserved. Nothing in this charter except as otherwise provided shall affect or impair the rights or privileges of persons who are city officers or employees at the time of its adoption.
In General. All city ordinances, resolutions, orders, and regulations which are in force when this charter becomes fully effective are repealed to the extent that they are inconsistent or interfere with the effective operation of this charter or of ordinances or resolutions adopted pursuant thereto. To the extent that the constitution and laws of the State of Texas permit, all laws relating to or affecting this city or its agencies, officers or employees which are in force when this charter becomes fully effective are superseded to the extent that they are inconsistent or interfere with the effective operation of this charter or of ordinances or resolutions adopted pursuant thereto.
(a) 
First Election. At the time of its adoption, this charter shall be in effect to the extent necessary in order that the first election of members of the city council may be conducted in accordance with the provisions of this charter.
If any provision of this charter is held invalid, the other provision[s] of the charter shall not be affected thereby. If the application of the charter or any of its provisions to any person or circumstance is held invalid, the application of the charter and its provisions to other persons or circumstances shall not be affected thereby.