Keep server disk filename same as Original upload filename

Hello

inside plugin file

plugins/flexicontent_fields/file.php

we have:

$abspath = str_replace(DS, '/', JPath::clean($basePath.DS.$file_data->filename));


thus the UTF-8 filename is damaged

you can try replacing it with:
$abspath = str_replace(DS, '/', $basePath.DS.$file_data->filename);


and test, still will need to add extra checks for filename to avoid security issues,

so your hack in helper upload functions, even if they work, we can not say if they are safe