Mouse copy/paste within conversation input field does nothing

[Victor Engmark]

How to reproduce:
1. Start Pidgin
2. Double-click a buddy to start a conversation
3. Write some text into the input field
4. Select some of the input field text with the mouse
5. Middle-click anywhere within the input field

Expected behavior: The previously selected text should be pasted at the point in the input field where the mouse pointer was as the middle button was released (like mouse copy/paste works everywhere in Ubuntu).

Actual behavior: Nothing happens. If I start Pidgin from the shell, there is no error or warning message when copying or pasting.

Details: Mouse copy/paste from the conversation input field to other applications works fine, and vice versa. Even copy/paste from one conversation input field to a separate conversation input field within the same instance of Pidgin works. *Only* copy/paste from a conversation input field to the same conversation input field does not work. Mouse copy/paste within other applications (Firefox, GNOME Shell) works fine.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pidgin 1:2.10.3-0ubuntu1.1
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic i686
ApportVersion: 2.0.1-0ubuntu12
Architecture: i386
Date: Mon Sep 3 11:20:21 2012
ExecutablePath: /usr/bin/pidgin
InstallationMedia: Ubuntu 10.04.4 LTS "Lucid Lynx" - Release i386 (20120214.2)
ProcEnviron:
 TERM=xterm
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US.UTF-8
 LANGUAGE=en_US:en
SourcePackage: pidgin
UpgradeStatus: Upgraded to precise on 2012-07-19 (45 days ago)

[Victor Engmark (victor-engmark)]

This bug is also present in the Preferences -> Conversations -> Default Formatting text field.