OK, I am very sorry about this. The problem exists between the keyboard and the chair.
My current problem is just due to the ​ in the middle of capybara:
319 Try searching for the term "capy​bara" in this topic
I completely missed that zero-width addition. That explains why searching the topic doesn’t find that word currently, and as Simon King explained, message #1 was already reverted so the true capybara is now gone.
As for my initial problem, I’m happy to assume that was just me hitting Enter instead of selecting this topic, and leave it at that.
In my latest follow-up test I copy-and-pasted the text, so I inadvertently copied the #8203; as well. So, I’m embarrassed but hopefully haven’t wasted too much of your time. Thanks for all the help.
Tim