Highlight current line tick box

The highlight current line tick box in Options / Appearance / Composition mode does not appear to work correctly. This is just for composition mode. The current line remains highlighted if it is ticked on for main editor and you then switch to composition mode, even when the box remains unticked for composition mode.
If highlight current line is off for main editor, it then works fine in composition mode toggling it on and off correctly.

Verified here.