Cell#setValue with LocalDate instance mutates the style instance which can be a shared Style.default_style instance

[thestrox]

Hello,

There seem to be a bug in the Cell#setValue which mutates the Style.default_style instance if the style is untouched at that point.
This causes the Style.ISO_DATE_DATA_STYLE to be set on the Style.default_style instance shared by all cells. Then immediately upon next call to the Cell#setValue by any cell, the dataStyle is set to null as the style is the same shared Style.default_style instance.

So, basically the code is doing nothing if the style is untouched and still a Style.default_style instance at that point.
Also, it might be dangerous to mutate the shared instance like that.

I think the fix would be to modify the Cell#setValue for LocalDate by creating a new instance of style and setting it's dataStyle if the current style is Style.default_style.

SODS version 1.8.1

[github-actions]

Thanks for your report! Please ensure you have provided enough info in order to recreate the issue, including the problematic ODS File.

[miachm]

It should be fixed in 1.8.2 :)

[thestrox]

Perfect. Thanks!