The issue is exactly the one described here:
For tracking I'll copy here the issues with the produced ODT files:
- the default view of this document is 'web' - see
- LibreOffice does not display it with its name but as 'Untitled', as if it was an unknown file
- When using "save as", this document cannot be saved as anything else than html formats (a regular document can be saved as ms office formats, etc)
- the tracing of comments and history is not available in this document either, which would be available in a standard odt file.