begin for i in 1..2 loop null; end loop; end;
In the editor, when there are blank lines in code within a block of indented code where code folding is enabled, if you add spaces before / delete spaces via backspace after the code folding guidelines, the guidelines go out of line.
This doesn’t happen on 9.7.
I’ve attached an excerpt of a screenshot to show what I mean (picture = 1000 * words hopefully!).
Sample code I used in my screenshot: