Lexical version: every version

Steps To Reproduce

1. select 20px in toolbar
2. click editor

Link to code example:

The current behavior

• reset default fontSize

The expected behavior

• keep current style

I found what makes bug. onSelectionChange has below logic.

        if (
          currentTimeStamp < timeStamp + 200 &&
          anchor.offset === lastOffset &&
          anchor.key === lastKey
        ) {
          selection.format = lastFormat;
          selection.style = lastStyle;
      }

If conditional statement is true, It works expected. but currentTimeStamp < timeStamp + 200 is false.
What is the intention of this code??