Summary: Ref T13513. The code which added "r" and "R" to the inline menu accidentally discarded the difference between the keystrokes.

Test Plan:
  - Clicked an inline, pressed "r", got new empty inline (previously: inline with quote).
  - Clicked an inline, pressed "R", got a new quoted inline.
  - Repeated steps with the menu items, got the expected behaviors.

Maniphest Tasks: T13513

Differential Revision: https://secure.phabricator.com/D21268