Re: #

Changelog

• 需要知道 ttf 渲染数据是什么时候更新完毕的

Continuous Integration

This pull request:

• needs automatic test cases check // Manual trigger with @cocos-robot run test cases afterward

Compatibility Check

This pull request:

• changes public API, and have ensured backward compatibility with deprecated features.
• affects platform compatibility, e.g. system version, browser version, platform sdk version, platform toolchain, language version, hardware compatibility etc.
• affects file structure of the build package or build configuration which requires user project upgrade.
• introduces breaking changes, please list all changes, affected features and the scope of violation.