This is already a long existing issue, so it’s time to report it…
If a single quote is used in a website’s name, the name is shown in various places including an escaping \like: in the top left of a single site’s dashboard:
Replacing the ' in the single site settings: The ' was removed.
Adding the ' again:
Test 2 did work for 2 other sites.
So it looks like it was an old bug and luckily I had only 4 sites with this issue, so it’s solved for now.
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