[O] Does :block field of clocktable respect org-extend-today-until?

[Robert Irelan]

Testing it just now, it appears that it doesn't - the clock table excludes
times after midnight but before org-extend-today-until. I'll probably work
on fixing this unless someone believes that the current version of org-mode
is expected to respect org-extend-today-until. org-version gives:
Org mode version 9.1.9 (9.1.9-8-gf05c2e-elpaplus)