Folding headings which contain only blank lines

[Dmitrii Korobeinikov]

Hi!

When everything is folded (e.g. on startup), ellipses show after every
heading which has anything in it at all. This is true as well for the
headings containing only one or more blank lines. And while you can
unfold such lines, you can't fold them back unless you use Shift-Tab.
This appears to be inconsistent. Shouldn't it be possible to tab fold
such headings too?

Best,
DK