If I have some text that I already typed, and I want to turn it into the display text for a new Wikilink, and if I append two closing square brackets to it, and then move back the insertion point to before the display text, type two opening square brackets, the target note’s title will be autocompleted if existent, but then if I select the target note, the display text vanishes. This happens also if I first add the pipe character right before the display text, move back, and the type [[target note title.
It’s not easy to explain, but if you try you’ll see what the problem is. I’m not sure if this should count as a bug or a feature request, but I would like this to work as you would probably expect.