When a user submits "isEditing" inlines and chooses to publish them, publish their current draft state as-shown

Summary: Ref T13513. When users choose to publish inlines, we want to publish the visible text, not the last "checkpointed" state.

Test Plan:

• Created an inline ("AAA").
• Edited it into "BBB", did not save.
• Submitted.
• Confirmed that I want to publish the unsaved inline.
• Saw "BBB" publish.

Maniphest Tasks: T13513

Differential Revision: https://secure.phabricator.com/D21218