Sometimes, one mount path may be encountered multiple times
in /proc/self/mounts file.
For example, when systemd automounting is used.
In such cases Filelight would display such mount paths multiple times
in main window.
Or when multiple filesystems are mounted over same path.
In such cases use information only about last mounted filesystem
since only it is available at the moment.

Also ignore 'autofs' filesystems.

Issue reproduces when systemd automounting is used.

1. Setup automounted nfs mount like this in /etc/fstab:

server_address:/remote_path /local_mountpoint nfs ro,nolock,x-systemd.automount 0 0

2. force systemd to re-read fstab or reboot.

systemctl daemon-reload and systemctl restart remote-fs.target should be enough

3. Following command should return at least 2:

$ grep /local_mountpoint /proc/self/mounts | wc -l

First entry is autofs from systemd and second entry is actual nfs mount.

4. Run Filelight
5. Filelight should display only one /local_mountpoint entry.

It is also possible to reproduce issue by mounting different filesystems over same mount path:

1. Mount at least 2 different filesystems over same mount path.
2. Only one filesystem is actually available to user, the one which was mounted last.
3. Filelight displays mounted path at least 2 times, possibly using different names if such names are available.