Description:
The editing of DOCX documents can be restricted to filling in forms in Microsoft Word: these documents can be still modified just like a normal document until a password is added to the file. After that, only the form control elements can be interacted with.

When a DOCX document that has the “restricted to filling in forms” option turned on, but isn't protected with a password is opened first in LibreOffice, it appears just like a regular, editable document. But after the file is saved as DOCX and reopened, it turns into read only document.


Steps to Reproduce:
1.	Create a new document in Microsoft Word.
2.	Type in some text (no form control elements are actually needed).
3.	Go to the Developer tag and click on the Restricted Editing button.
4.	Select the “Filling in forms” option under “2. Editing restrictions”.
5.	Save the file as DOCX and close Microsoft Word.
6.	Open the DOCX file in LibreOffice Writer and try to change it: you can edit it just like a regular document.
7.	Save the file as DOCX, and click on File > Reload.


Actual Results:
The document turns into read only.

Expected Results:
The document shouldn't be read only because it isn't yet protected with a password yet.


Reproducible: Always


User Profile Reset: No



Additional Info: