Terminal crash when drag tab for new window

[shantanu saha]

How to regenerate:

1. Open pantheon-terminal.
2. Create a new tab. So there are two tabs.
3. Now drag a tab(to the outside of terminal window) to create a new window

Consequence: Tab removed from terminal window, trying to create a new window and both terminal window crashed

Expected output: Tab will remove from terminal and create a new window.

ProblemType: Bug
DistroRelease: elementary OS 0.3
Package: pantheon-terminal 0.3.1.1+r721+pkg35~ubuntu0.3.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17
Uname: Linux 3.13.0-49-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CrashDB: pantheon_terminal
CurrentDesktop: Pantheon
Date: Mon Apr 20 18:34:51 2015
EcryptfsInUse: Yes
GsettingsChanges:

InstallationDate: Installed on 2015-02-11 (68 days ago)
InstallationMedia: elementary OS 0.3 "Freya" - Daily amd64 (20141209)
SourcePackage: pantheon-terminal
UpgradeStatus: No upgrade log present (probably fresh install)