When Tomboy search source is ENABLED in Unity Dash, a simple search is enough to trigger launching of new Tomboy instances. Once the source is DISABLED, no search triggers this bug.
How to reproduce: Enable the Tomboy source, open Dash and start typing something what might trigger Tomboy. Say, typing "Tomboy" or just "Tom" and so on, and deleting it and typing again, is enough to keep firing new instances.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.0+14.04.20140411-0ubuntu1
Uname: Linux 3.14.0-031400rc8-generic x86_64
ApportVersion: 2.14.1-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: GNOME
Date: Sun Apr 13 14:34:16 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-06-19 (297 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=lt_LT.UTF-8
SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-04-10 (3 days ago)
Status changed to 'Confirmed' because the bug affects multiple users.