First off, yeah it was dumb of me to accidentally delete a reply. But still…
I had a reply on a thread and out of curiosity I hit the three dots to see the options, though for some reason I double-clicked it and due to where the “Delete Reply” option appears… the second click hit that. There was some kind of refresh option that appeared in its place so I assumed that would undo my deletion, but it said the URL requested was not available and refreshed the page.
While this isn’t a huge issue, it does sorta idiot-proof replies from people like me who randomly double-click on things.