Bug 1898073

Description of problem:
When LibreOffice saves a file, it removes the old file and creates a new file.
But it doesn't preserve facls.

Instead, LibreOffice should either write the new content in the same file (creating a backup file as a new file before modifying the original file), or create the new file with exact the same permissions, facls, SELinux context, etc. as the old file.


Version-Release number of selected component (if applicable):
libreoffice-6.4.7.2-3.fc32.x86_64

How reproducible:
Always

Steps to Reproduce:
1. Open LibreOffice.
2. Create new LibreOffice document and save it
   (on a local file system, so we can use setfacl and getfacl)
3. Check facls:
   getfacl filename
4. Set some facls, for example
   setfacl -m g:wheel:rw- filename
5. Check facls:
   getfacl filename
6. Note which inode the file has, for example with stat:
   stat filename
7. Open the file in LibreOffice, change something, so it is modified, and save it.
8. Check if the file has the same or another inode now:
   stat filename
9. Check facls:
   getfacl filename


Actual results:
FACLs are lost.

Expected results:
FACLs are preserved.