In this Visual-mode reply – https://en.wikipedia.org/w/index.php?title=Talk:Portland_Mavericks&diff=1020019400&oldid=1020015416 – I selected "may be playing up the" and made it not-italic, and the change was reflected in the editing surface, but it still saved as italic. "The Keizer Times" had been pasted as formatted text, and the space between "Times may" was not selected when changing from oblique to upright. Not a huge deal, just reporting it in case you are investigating glitches.
Topic on Talk:Talk pages project/Replying/Flow
Hmm, what you described sounds unexpected. Can you please give the steps below a quick read to make sure I am accurately understanding what you experienced?
Behavior
1. Visit a talk page
2. Copy italicized text
3. Paste the "italicized text" you copied in "Step 2." into the Reply Tool's visual mode
3½. Type something after the pasted italic text, notice that it's still italic.
4. Un-italicize newly typed text, leaving the pasted text untouched
5. Notice the appears un-italicized
6. Press the Reply
button to publish the comment you've been drafting
Actual
7. ❗️Notice the comment is published and the text within it was change to be italicized
Expected
7. ✅ Notice the comment is published and the text within it remains un-italicized
Note: I have not yet been able to reproduce this. See https://w.wiki/3EzZ.
EDIT: I've updated the "Behavior" above to incorporate the edits @Pelagic shared in this comment.
3½. Type something after the pasted italic text, notice that it's still italic.
4. Un-italicise the newly typed text, leaving the pasted text untouched.
Other steps are the same. I can’t reproduce it either. Works as expected when I repeat the sequence.
Thank you for clarifying, @Pelagic. I've updated the comment I posted above with these edits. Let's leave this comment open for now and if/when you encounter the issue again, can you please comment in this thread?
@Pelagic, have you seen this problem since April?
No, it hasn't re-occurred, I'll summarise this topic and close it.