One of several tweaks coming up in Release 77 - the on-hover extension of long log lines.
Windows comes with native support for this sort of functionality and it's called "in-place tooltips". For example, they are used in Windows Explorer when displaying file and folder names that don't quite fit the allotted space.
But in a true Windows fashion, while it works, it also... flickers!
Blinkety-blink. Here's a slo-mo in all its glory:
So after killing several hours on trying to make it behave, it became clear that it's faster and simpler to just redo it from scratch.
Not the first time
and, sure as hell, not the last :-|