Inconsistent click-drag behaviour between global and local menus

[Alan Pope 🍺🐧🐱 🦄]

With global menu in top bar, click (without unclicking) a menu and drag down to choose a menu item.
Now enable locally integrated menus and maximise an application then do the same.

I've observed the behaviour is inconsistent.

With global menu: Menu opens
With LIM: Window detaches from being maximised.

This makes it slower using LIM as you can't click and drag down to open a menu, you have to click/release then slide down and click again.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.1.2+14.04.20140220-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4
Uname: Linux 3.13.0-12-generic x86_64
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,grid,imgpng,gnomecompat,scale,workarounds,mousepoll,regex,wall,move,place,vpswitch,resize,unitymtgrabhandles,snap,session,expo,ezoom,unityshell]
CurrentDesktop: Unity
Date: Fri Feb 28 00:10:22 2014
EcryptfsInUse: Yes
InstallationDate: Installed on 2012-06-29 (608 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: unity
UpgradeStatus: Upgraded to trusty on 2014-01-20 (38 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Owen Williams (ywwg)]

It's very distracting to lose menu click and drag -- moving the window should only be possible by clicking empty areas of the title bar.