dhtmlxGrid xml replace special character as &nbsp

Hi,

I have use setSerializationLevel(true, false, false, false, false, false) for tree grid. When we get data from serialize() it will append &nbsp in output Instead of special letter like french character - êèé. While loading also it display as space instead of french character.
i.e Tell éMe is replaced as Tell Me while displaying the data, When getting the data using serialize() method it shows as Tell &nbsp.

even i have tried setSerializationLevel(false, false, false, false, false, true) , but in vain.

Please help me out from this issue.

Thanks in advance.

Unfortunately the issue cannot be reproduced locally.
If issue still occurs for you - please, provide with a complete demo or a demo link, where the issue can be reconstructed.