Bug Report: Kimi K2 thinking loop stuck when streaming word-by-word

I'm hitting a UI bug with Kimi K2 thinking model. When "Stream AI responses word by word" is enabled, the thinking indicator keeps spinning forever even after the full response is delivered and complete.

The response itself works fine - the UI just doesn't recognize the stream ended. Toggling streaming off/on temporarily fixes it, but the bug returns.

Setup: Kimi K2 thinking via Moonshot AI direct.