lisp/org.el: Fix bug when unfolding a subtree
* lisp/org.el (org-cycle-internal-local): Use 'tree instead of
'canonical when setting the visibility of the subtree to unfold.
Reported-by: Yasushi SHOJI <yasushi.shoji@gmail.com>
Link: https://orgmode.org/list/CAELBRWLakDCbawmMdS5Qi0qh5FC2ixF82xNfCg75wMjmze6pbA@mail.gmail.com/