Several composed keys do not work

[Lars Kr. Lundin]

Binary package hint: flpsed

In Preferences->Keyboard -> Layouts->Layout Options->Compose key position
Left Win and Right Win has been selected.

In Preferences->Keyboard -> Layouts -> "Type to test settings" I can now type:
<compose key>-a-e and get æ
<compose key>-o-/ and get ø

Opening flpsed on some random PostScript file (e.g. echo test | a2ps -o test.ps)
these composed keys give the expected result
<compose key>-a-e (æ)
<compose key>-s-s (ß)
<compose key>-o-/ (ø)
<compose key>-<shift>-a-e (Æ)
<compose key>-<shift>-o-/ (Ø)
<compose key>-n-~ (ñ)

All other composed keys I can think of yield a different, undesired output in flpsed, including:
<compose key>-a-a
<compose key>-o-e
<compose key>-u-"
<compose key>-a-"
<compose key>-o-"
<compose key>-e-,
<compose key>-c-.
<compose key>-c-c
<compose key>-l-/

Copy-pasting such composed keys from the above-mentioned "Type to test settings" window into flpsed does not work.

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: flpsed 0.5.1-2
ProcEnviron:
 PATH=(custom, user)
 LANG=en_DK.UTF-8
 SHELL=/bin/bash
SourcePackage: flpsed
Uname: Linux 2.6.28-15-generic i686