Hovering over output in worksheet not working

[barshirtcliff]

Describe the bug
According to this page I should be able to hover over the comment-output generated in a worksheet to see the complete output. This works in other editors, such as IntelliJ and Code. In emacs, however, nothing happens.

To Reproduce

create a worksheet named foo.worksheet.sc anywhere.
add a line:
val longString = "thisisalongstring" * 10
save the file.

Expected behavior
hovering over the comment should reveal the complete string. but nothing shows up.

Screenshots
Here's the test output. No new output appears in the *lsp-log* buffer during hover.

[barshirtcliff]

This is a more complete representation of a bug identified previously.

[kurnevsky]

Try to hover over the string itself, not over commented part. Emacs doesn't support help messages over added overlays.

[kurnevsky]

Actually it can be done using text property instead of overlay property.