The composer sent `value.trimEnd()`, so the raw draft never reached
`sendMessage` and a rejected send still handed back a trimmed composer —
the split of `draftText` from the transported `text` had nothing to
restore. Pass the draft through; the seam already owns the wire trim.
Also pins the array-identity contract of
`retireLandedMobileNativeChatPending`: the drafts effect early-outs on
`next === current`, and nothing tested it.
Brennan Benson
4beb8547ee