SRU information:

Impact: The bug affects many existing user; they make local
modifications to the ownership or permissions of /etc/fuse.conf and
installing an update squashes those changes.

As stated above, the patch fixes this by only setting the permission and
ownership of /etc/fuse.conf when it is also adding the fuse group in the
postinst, rather than unconditionally.  It's considered unlikely that
there would be local modifications to fuse.conf when the fuse group does
not exist.

See linked branch for proposed fix for Lucid.

Reproduce by: change perm/own of /etc/fuse.conf; apt-get rm fuse-utils;
apt-get install fuse-utils; see the perm/own change.  Installing the
fixed package however will preserve this change.  You should also test a
fresh install by apt-get purge fuse-utils; delgroup fuse; then install
the fixed package and see both the group and own/perm on /etc/fuse.conf
be installed correctly

Regression potential: None foreseeable, unless someone depends on the
unconditionally squashing of perm/own of /etc/fuse.conf on upgrade.

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https://bugs.launchpad.net/bugs/697792

Title:
  permissions of /etc/fuse.conf are reset on upgrade

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