[BUG] 长按事件后，页面首次点击无反应

demo: https://github.com/yiescc/demo-08-26.git

- 长按第一个元素，触发touchstart，2s后点击页面 无反应
- 第二次点击，正常

Start by reproducing the long-press and first-tap behavior using the linked demo repository, focusing on the touchstart handling described in the issue. Trace the relevant event flow and verify that the first tap responds normally after a long press; add or update a regression check if the project’s existing tests cover this behavior.

Written by the indexing model from the issue text.