Code editor bug

The code editor is helpful enough to know that it can collapse (hide) code blocks, e.g. a Python class or if block. It indicates this by displaying a little arrow in the column that shows the line numbers.

If I click on the arrow to collapse a region of code, when I then save the file, the editor automatically expands all of the collapsed regions. This is quite annoying especially when working on a small screen. Is this a known bug or issue?

That is a known issue. I have upvoted the ticket for you.

Thanks, is there a list somewhere of all the bugs and issues that we can look through?

No, we don't make that public.

another upvote for the bug please

Sure, I've added the upvote.

Is there a keyboard shortcut to collapse the code block?

F2 will toggle the fold on the block of code where your cursor is.