Fix GH-10651: mbfl_filt_conv_jis_wchar() state transition to JIS X 0201 when 0x0f is passed

[pakutoma]

I am new to PHP contributions, so please let me know if I am doing something wrong.

[nielsdos]

Thank you for your contribution!
Since this is a bugfix, and you said in your issue that it reproduces on 8.1, this needs to target branch PHP-8.1 instead of master.
Could you also please write a test case for this issue? (https://qa.php.net/write-test.php)

[alexdowad]

@nielsdos is very right that this should target PHP 8.1, and that there should be tests. But an even bigger issue is whether we want to make this change or not. It would be a BC break.

As with all other issues, I am open to either conclusion. But let's discuss it thoroughly before jumping to a PR.

[pakutoma]

The issue concluded that no modification is necessary, so I will close it.

[alexdowad]

The issue concluded that no modification is necessary, so I will close it.

@pakutoma If that is your conclusion, I accept it. But please don't think that because I raised a concern, it means your changes are not wanted.

We are always interested in hearing your views and those of other PHP users, and are open to (possibly) making changes when there are logical reasons to do so.