If you are new to wordpress and by chance you need to edit a category post slug, after doing so and checking the category link. You realize that the category slug you just changed didn’t change to the way you wanted it to be.
For example, I wanted the sub-category mmo-pc changed to mmo-games but instead it changed itself to mmo-games-pc. What could be the problem?
This problem occurs if you have the exact slug named to tags. Before, I have a tag named “mmo-games” in which causing the problem. After searching for that particular tag “mmo-games” and deleted it. I go back editing the sub-category slug “mmo-pc” to “mmo-games”. Viola, problem solved.
So make sure you don’t have identical name for tags and categories.
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