Thanks Eric for this explanation!
I can't read emacs-devel as often as I did.

Fabrice

Le mar. 12 nov. 2019 à 07:45, Fraga, Eric <e.fraga@ucl.ac.uk> a écrit :
On Monday, 11 Nov 2019 at 17:12, Fabrice Popineau wrote:
> - with global-hl-line-mode: the cursor disappears on empty lines,
> quite disturbing in my opinion

Known problem in latest versions of Emacs with extended faces (hl-line
face is one such face).  If you customize the face and remove the
:extend property, everything is fine in terms of the cursor but, of
course, the face will no longer extend across the window.

--
Eric S Fraga via Emacs 27.0.50, Org release_9.2.6-552-g8c5a78