write-back fails on unmount in 16.04: apparently fixed in version 0.4.2 upstream

[Jonas Bardino]

Mounting and adding contents inside mounted zip seems to work, but unmounting results in a syslog error and changes are then not really written to the archive as one would have expected them to be.
The error message on unmount is:
... fuse-zip[4923]: Error while closing archive: Operation not supported
... fuse-zip[4923]: File system unmounted

On Ubuntu 16.04.2 running the attached test script yields:
0|~/build/fuse-zip-test > bash fuse-zip-write-test.sh
Running fuse-zip write test
  adding: test-file.txt (stored 0%)
Original archive contains:
Archive: test-archive.zip
  Length Date Time Name
--------- ---------- ----- ----
        5 2017-03-09 15:03 test-file.txt
--------- -------
        5 1 file
Mount and copy file to archive
Now mount contains:
total 1
-rw-rw-r-- 1 bardino bardino 5 Mar 9 15:03 another-test-file.txt
-rw-rw-r-- 1 bardino bardino 5 Mar 9 15:03 test-file.txt
After unmounting archive contains:
Archive: test-archive.zip
  Length Date Time Name
--------- ---------- ----- ----
        5 2017-03-09 15:03 test-file.txt
--------- -------
        5 1 file
Cleaning up

Where the zip is clearly missing the added another-test-file.txt after the unmount.

Running the same script on e.g. a Debian Jessie host correctly results in the files appearing in the zip after unmount. That system similarly uses fuse-zip 0.4.0 but with an older libzip (libzip2 0.11.2-1.2) vs the newer one in xenial (libzip4 1.0.1-0ubuntu1).

Apparently that difference causes the problem and it has been fixed in 0.4.2 upstream. Please refer to the details in the upstream bug #49 for details:
https://bitbucket.org/agalanin/fuse-zip/issues/49/is-it-broken-on-ubuntu-1604

I have verified that running apt-get build-dep fuse-zip and then manually building fuse-zip 0.4.2 from upstream solves the problem on Ubuntu 16.04.2, too.

Additional test system info:
0|~ > lsb_release -rd
Description: Ubuntu 16.04.2 LTS
Release: 16.04
0|~ > apt-cache policy fuse-zip
fuse-zip:
  Installed: 0.4.0-2build1
  Candidate: 0.4.0-2build1
  Version table:
 *** 0.4.0-2build1 500
        500 http://dk.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status