I have had this same issue before with another article. Please see my other bugs you have already fixed and your internal notes for additional info.   I am attempting to add a "Military Formation Usage" under my article "War Horse" however after selecting a saving the changes and viewing the article, the change reverts itself. This is inconsistent with other articles and sidebars.   I can send screenshots on discord if needed. Thank you again.

Steps to Reproduce

1. Select article "War Horse"   2. Select "Cavalry" under "Military Formation Usage" and save changes   3. Select "view"   4. Article "Cavalry" fails to populate side-bar section.

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