Queued prompt resolves with the stopped turn's message instead of its own reply

Description

A prompt submitted while another prompt's turn is active can resolve with the earlier turn's message instead of its own reply — typically a tool call with no text parts.

Plugins

None

OpenCode version

dev @ b3f1a96c6d

Steps to reproduce

1. Submit prompt A; its turn calls the question tool and hangs waiting for an answer (same happens with a denied tool).
2. Submit prompt B while A's run is active. B's user message is persisted and B waits on the active run.
3. Reject the question (POST /question/:id/reject) — the processor sets ctx.blocked and the turn ends with "stop".

Expected: B gets its own assistant reply.
Actual: the run exits and resolves every waiter with its final message — A's tool-only message, no text parts.

Screenshot and/or share link

N/A (reproduced via API with a regression test)

Operating System

macOS 26.4.1

Terminal

N/A — server-side, reproduced via HTTP API