Bug#506301: gedit: Seahorse decryption doesn't function reliably

[Onsemeliot]

Distribution: Debian 4.0
Package: gedit
Severity: major
Version: GNOME2.14.3 2.14.x
Gnome-Distributor: Debian
Synopsis: gedit: Seahorse decryption doesn't function reliably
Bugzilla-Product: gedit
Bugzilla-Component: Plugins
Bugzilla-Version: 2.14.x
Description:
Description of Problem:
When i copy a pgp-encrypted text-block into gedit i (very often) get the message:
"Couldn't decrypt text
Message did not receive a reply (timeout by message bus)"
even when the key of the sender is recognized. (I never had a problem with decrypting my own encrypted texts. The error occurs only with messages from a few people who are working on Windows-PCs.)
If i decode the same text-messages with gpg in the console it works just fine.

Steps to reproduce the problem:
1. Reicieving encrypted messages from various Windows users.
2. Copying the whole encrypted text-block from an freemail account like gmail into gedeit and try do decrypt it by using the menu-options: "Edit" / "Decrypt/Verify".

Actual Results:
error message: "Couldn't decrypt text
Message did not receive a reply (timeout by message bus)"

Expected Results:
Showing the decrypted text (like the gpg command-line tool or like in other cases in gedit as well).

How often does this happen?
Nearly every time when i receive encrypted messages from some people. (The messages from other people cause no problems at all.) The same people are writing encryptet mails to others without any problems.

Additional Information:
Could this be caused by a problem with the line-breack differnce between Linux and Windows in the public key file? (I built the .asc-file with Seahorse.)

I tried to trace the problem by using differnt freemailers and Evolution Mail as well. The most strange thing about this is, that in some rare occasions the decryption in gedit works even with mails from the people whoms mails usually causes problems ...
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