|mediawiki/extensions/CodeMirror||master||+15 -11||Merge selectors for VE & CM surfaces, and add 'hyphens' rule|
Looking at the screenshot, the problem isn't with word-wrap, but with [[https://developer.mozilla.org/en-US/docs/Web/CSS/hyphens | hyphens]]. So the value should be reset to manual or none, to make it match the overlay (though setting this to auto on editable content seems bad anyway).
Here's another example, from today. I want to challenge the assignment of 'low' priority to this bug. I encounter this error more than half of the time when I edit in Firefox. I'm disabling the 2017 WTE until it's fixed; it basically prevents me from using the feature in my chosen browser, and it's not an edge case. @TBolliger can you give me a sense of why this is being de-prioritized?
Based on the screenshot in https://de.wikipedia.org/w/index.php?title=Benutzer_Diskussion:Aschmidt&oldid=178336976#Technische_Wünsche:_Wikitext-Syntaxhervorhebung_ist_jetzt_Standardfunktion, that seems like a different issue:
There is no word-wrapping in the screenshot, and that was the cause of this problem.
@Aschmidt If you still see that problem, can you file another task? (yet another…)