Unexpected/unusable behavior with steering prompts and subagents with 1.0.49 version. Worked fine in 1.0.48.

### Describe the bug

I use parallel subagents a lot and with the latest version the experience has degraded a lot and has become unusable.
1. The subagents keep on running indefinitely mostly. And even if I ask the main agent to stop them or ask them to consolidate their findings they don't stop. They keep on running in loops. 1-2 hrs and even more.
2. Steering prompts also doesn't work since the turns of those agents never completes. Its like the main agent doesnt pick up new prompts from the queue as it keeps on waiting for the subagents and subagents never complete. With 1.0.48, steering was very good, it stopped current work (of main agent) and I could send important directions if I saw it deviating. With new version the steered prompts are just added to the queue and are picked up very late.
3. Explore agents work fine, general-purpose aren't working.

Evidences

### Affected version

1.0.49

### Steps to reproduce the behavior

_No response_

### Expected behavior

_No response_

### Additional context

_No response_

在版本 1.0.49 中使用平行的通用子代理與引導提示重現該行為，然後與 1.0.48 進行比較。追蹤通用子代理為何不會終止，以及排隊中的引導提示為何會延遲；完成的標準是子代理及時停止或合併，且引導提示如預期中斷目前的工作。

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