Reported on Discord by @MrLinkinPark333

Steps to replicate the issue (include links if applicable):

• Skin: probably all. tested in vector and vector-2022
• Make sure there's some items on your watchlist
• Visit https://en.wikipedia.org/wiki/Special:EditWatchlist

What happens?:

What should have happened instead?:

• One of each item in the table of contents instead of two

Software version (skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):