What happens?:
https://sv.wikipedia.org/w/index.php?title=Springkorn&diff=50600070&oldid=49445835
In this edit the reference got broken,
What should have happened instead?:
Either replace with other character if possible in all reference tags, or do not change the HTML character.
Software version (if not a Wikimedia wiki), browser information, screenshots, other information, etc.:
WPCleaner version 2.04 (11 nov 2020)