unsaved changes in zoho sheet

unsaved changes in zoho sheet

Hi,
When editing a a document using zoho writer remote API, and tries to close the writer with unsaved changes, the writer alerts the user reminding him of saving, but sheet does not behave so, and do close and leave the user suffers from data loss.
I think this is a new feature in writer, should we expect zoho sheet to support that soon?
Thanks,
Mohammad