[Bug 1717991] Re: file returns "name use count (30) exceeded"

[Eli Collins]

Testing on various systems, I'm seeing this on Debian Stretch using file
version 1:5.30-1+deb9u1.

But not on older ubuntu version like file 1:5.25-2ubuntu1.

(Both tested using above test.jpg)

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Title:
  file returns "name use count (30) exceeded"

Status in file package in Ubuntu:
  Confirmed
Status in file package in Debian:
  New

Bug description:
  In Ubuntu 17.04 there seems to be a problem with "file":

  $ file test.jpg 
  test.jpg: ERROR: JPEG image data, JFIF standard 1.01, resolution (DPI), density 240x240, segment length 16, Exif Standard: [TIFF image data, big-endian, direntries=8, description=Picture saved with settings embedded., orientation=upper-left, xresolution=148, yresolution=156, resolutionunit=2, software=Adobe Photoshop Lightroom 6.1.1 (Windows), datetime=2017:08:17 11:16:47] name use count (30) exceeded

  This problem was reported in Fedora a couple of years ago:
  https://bugzilla.redhat.com/show_bug.cgi?id=1201630

  I found out about the problem when the Astrometry program suddenly
  stopped working on jpegs that it was previously able to process. I
  cannot say how "file" is supposed to normally output the data. I only
  found out about this when the program suddenly broke without any
  obvious reason after the upgrade from Ubuntu 16.04 to 17.04. Since
  there is another case reported for Fedora I tend to believe that the
  problem is indeed caused by "file".

  The required data:

  $ lsb_release -rd
  Description:	Ubuntu 17.04
  Release:	17.04

  
  $ apt-cache policy file
  file:
    Installed: 1:5.29-3ubuntu0.1
    Candidate: 1:5.29-3ubuntu0.1
    Version table:
   *** 1:5.29-3ubuntu0.1 500
          500 http://fi.archive.ubuntu.com/ubuntu zesty-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu zesty-security/main amd64 Packages
          100 /var/lib/dpkg/status
       1:5.29-3 500
          500 http://fi.archive.ubuntu.com/ubuntu zesty/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 17.04
  Package: file 1:5.29-3ubuntu0.1
  ProcVersionSignature: Ubuntu 4.10.0-33.37-generic 4.10.17
  Uname: Linux 4.10.0-33-generic x86_64
  NonfreeKernelModules: sep4_0 socperf2_0 pax
  ApportVersion: 2.20.4-0ubuntu4.5
  Architecture: amd64
  CurrentDesktop: Unity:Unity7
  Date: Mon Sep 18 20:36:35 2017
  InstallationDate: Installed on 2016-01-18 (609 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  SourcePackage: file
  UpgradeStatus: No upgrade log present (probably fresh install)

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