时间轴最右侧按钮多次点击之后卡死 控制台报错



Start by reproducing the issue by repeatedly clicking the timeline's rightmost button and inspect the browser console when it becomes unresponsive. The payload names no source file or test, so locate the timeline button entry point from the reproduction and use the reported console error to guide the investigation. Done means repeated clicks no longer freeze the control and the console error is resolved.

Written by the indexing model from the issue text.