No ordinance or section thereof shall be revised, amended or repealed, except by ordinance, and no ordinance or resolution or section of either shall be revised or amended unless the ordinance or resolution making such revision or amendment sets forth the full text of the ordinance, resolution or section as revised or amended. The repeal of any ordinance, resolution or section by which another ordinance, resolution or section was expressly repealed or amended shall not have the effect of reviving or reenacting such prior ordinance, resolution or section.