cannot remove package on Feisty

[Matti Lindell]

Binary package hint: fish

There's seems to be a docid collision or something with fish and gnome-applets-data package's docs.
As a result, purging fish removes file installed by gnome-applets-data (/usr/share/omf/fish/fish-C.omf) and chockes when trying to remove a whole directory installed by gnome-applets-data.

$ install-docs -s fish
---document-information---
Document: fish
Abstract: This guide documents fish, a shell
 geared towards interactive use.
Author: Axel Liljencrantz <email address hidden>
Section: Apps/Shells
Title: Debian fish Manual

---format-description---
Format: html
Files: /usr/share/doc/fish/*.html
Index: /usr/share/doc/fish/index.html

---status-information---
Control-File: /usr/share/doc-base/fish
Registered-to-dhelp: 1
Registered-to-dwww: 1
Registered-to-scrollkeeper: 1
Scrollkeeper-omf-file: /usr/share/omf/fish/fish-C.omf

$ sudo aptitude purge fish
.
.
Removing fish ...
/usr/share/omf/fish/fish-C.omf: could not delete file: No such file or directory at /usr/sbin/install-docs line 640.
dpkg: error processing fish (--purge):
 subprocess pre-removal script returned error exit status 2
Errors were encountered while processing:
 fish
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:

[Daniel Holbach (dholbach)]

daniel@bert:~$ dlocate usr/share/omf/fish/fish-C.omf
gnome-panel-data: /usr/share/omf/fish/fish-C.omf
daniel@bert:~$

[Daniel Holbach (dholbach)]

Some investigations:

fish doesn't install anything into *omf*:
daniel@bert:~$ grep omf /var/lib/dpkg/info/fish.list
daniel@bert:~$

The fish.prerm script merely runs:
        install-docs -r fish

from install-docs(8):
       -r docid | --remove docid
           Remove the documentation identified by the document identifier docid. Document identifiers are tags which are set in the control file, and usually correspond to the package name.

./debian/fish.doc-base contains:
Document: fish
Title: Debian fish Manual
Author: Axel Liljencrantz <email address hidden>
Abstract: This guide documents fish, a shell
 geared towards interactive use.
Section: Apps/Shells

Format: HTML
Index: /usr/share/doc/fish/index.html
Files: /usr/share/doc/fish/*.html

To be honest, I suspect a problem in either doc-base (install-docs) or fish.doc-base

[Sebastien Bacher (seb128)]

Daniel, the problem is that fish and gnome-applets use the name "fish" namespace, one of the packages need to have its documentation renamed

[Matti Lindell (mlind)]

I somehow reported it against wrong package, s/applets/data/.
I'll vote for fish-applet in gnome-panel-data package to change its docid.

[Dereck Wonnacott (dereck)]

I was able to install and remove this package in Hardy.