When looking at components in Dev mode you can see code snippets for Layout and Style.
Sometimes double clicking to select a line and copying it over to a code editor shows that a bunch of extra text was selected and copied. Super frustrating.
The workaround is to carefully select by hand, also super frustrating.
I think the issue is prominent on the last line in the code previews. Lines further up work ok, but the last line always copies more than the line itself.
Here is a gif demonstration of the issue:
