This is a test post to show an unintended WordPress feature.

• Define a Category as “Recipe” and sets its slug to “recipe”.
• Define a Tag as “Recipe” and sets its slug to “recipe”.
• Write a Post and assign it to Category “Recipe” and add the Tag “Recipe”.
• Now, go to edit the Tag [Post Tags] and change “Recipe” to its lowercase form “recipe”.
• Surprisingly, the Category is also changed to lowercase!

Write a Post and assign Category 'Recipe' and Tag 'Recipe'

Click on Post Tags in left column to edit Tag 'Recipe'

Modify Tag Name to be lowercase 'recipe'

Presto! The Category is also changed to lowercase 'recipe'