Accidentally stumbled over this one. If you have a comment beginning “–” touching the cursor in front of it, and then use the Intellisense feature to put in code, the comment is deleted UP to the next whitespace character. So if the comment is “-- Test” then the "-- " is deleted, and “Test” remains. If the comment is “–Hello world” then the "–Hello " is deleted and “world” stays.
This is such a small issue that I wouldn’t even mind if it were never fixed, but I thought it might as well be brought up just in case someone wants to fix it.
This is hard to explain in words, so below is a video showing what I mean: