Yes, that must have been it. I was trying to figure out why the formatting looked wrong on a couple of clients.
First experience with replaceable notes!
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Discussion
Looks like when it got published on nostr:npub1jfujw6llhq7wuvu5detycdsq5v5yqf56sgrdq8wlgrryx2a2p09svwm0gx there were some hidden characters that carried over, probably because I wrote the text in a different editor and then pasted it in? I was having trouble with the text entry box on stacker.news because it kept resizing smaller as I was typing.
nostr:note1gqq8v4grqlztv0y5k62dgcqjnqju84xwuvqsyhtz3nm986h2salq43t7nk