Fix #3660: inhibit expensive mode hooks in src blocks
Fix #3660: inhibit expensive mode hooks in src blocks

Speeds up native indentation on RET or TAB in org src blocks.

Also, only reindent natively on RET if org-src-tab-acts-natively is
non-nil.

hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs