[Pkg-gmagick-im-team] Bug#990301: /usr/bin/identify-im6.q16: identify not following requested format for some gifs

[Brian May]

Package: imagemagick-6.q16
Version: 8:6.9.11.60+dfsg-1.3
Severity: important
File: /usr/bin/identify-im6.q16

$ identify -format "%w:%h" file.gif
480:270480:270480:270480:270

I only requested the values once, but it gave them to me 4 times. Which
makes it kind of difficult to parse.

This only happens for this image file, but no idea what makes it
special. Looks like an ordinary gif file to me:

$ file file.gif
file.gif: GIF image data, version 89a, 480 x 270

$ ls -l file.gif
-rw------- 1 brian brian 140074 Jun 25 14:27 file.gif

I have attached the file to this report. At least I hope I did :-)

This is what I would expect to see:

$ identify -format "%w:%h"  /usr/share/tcltk/tk8.6/images/pwrdLogo150.gif
97:150

-- Package-specific info:
ImageMagick program version
---------------------------
animate:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
compare:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
convert:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
composite:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
conjure:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
display:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
identify:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
import:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
mogrify:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
montage:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org
stream:  ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org

-- System Information:
Debian Release: 11.0
  APT prefers testing-security
  APT policy: (500, 'testing-security'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-7-amd64 (SMP w/20 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages imagemagick-6.q16 depends on:
ii  hicolor-icon-theme     0.17-2
ii  libc6                  2.31-12
ii  libmagickcore-6.q16-6  8:6.9.11.60+dfsg-1.3
ii  libmagickwand-6.q16-6  8:6.9.11.60+dfsg-1.3

Versions of packages imagemagick-6.q16 recommends:
ii  ghostscript                  9.53.3~dfsg-7
ii  libmagickcore-6.q16-6-extra  8:6.9.11.60+dfsg-1.3
ii  netpbm                       2:10.0-15.4

Versions of packages imagemagick-6.q16 suggests:
pn  autotrace               <none>
pn  cups-bsd | lpr | lprng  <none>
ii  curl                    7.74.0-1.2
pn  enscript                <none>
ii  ffmpeg                  7:4.3.2-0+deb11u2
ii  gimp                    2.10.22-4
pn  gnuplot                 <none>
pn  grads                   <none>
ii  graphviz                2.42.2-5
ii  groff-base              1.22.4-6
pn  hp2xx                   <none>
pn  html2ps                 <none>
pn  imagemagick-doc         <none>
pn  libwmf-bin              <none>
ii  mplayer                 2:1.4+ds1-1
pn  povray                  <none>
pn  radiance                <none>
ii  sane-utils              1.0.31-4
pn  texlive-base-bin        <none>
pn  transfig                <none>
pn  ufraw-batch             <none>
ii  xdg-utils               1.1.3-4.1

-- debconf-show failed
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