init-repository `--http' switch doesn't apply to nested submodules (e.g. v8)

Steps:
1. git clone https://git.gitorious.org/qt/qt5.git qt5
2. cd qt5
3. ./init-repository --ignore-submodules --http --no-webkit

Output:
...
Cloning into qtdeclarative...
+ git config commit.template /home/user/qt5/qtdeclarative/../.commit-template
+ git remote add gerrit http://codereview.qt.nokia.com/p/qt/qtdeclarative
+ git submodule init
Submodule 'src/3rdparty/v8' (git://github.com/aaronkennedy/v8.git) registered for path 'src/3rdparty/v8'
+ git submodule update
Cloning into src/3rdparty/v8...
github.com[0: 207.97.227.239]: errno=Connection timed out
fatal: unable to connect a socket (Connection timed out)
Clone of 'git://github.com/aaronkennedy/v8.git' into submodule path 'src/3rdparty/v8' failed
git submodule update exited with status 256 at ./init-repository line 298
Qt::InitRepository::exe('Qt::InitRepository=HASH(0x9337b38)', 'git', 'submodule', 'update') called at ./init-repository line 645
Qt::InitRepository::git_clone_one_submodule('Qt::InitRepository=HASH(0x9337b38)', 'qtdeclarative', 'http://git.gitorious.org/qt/qtdeclarative.git') called at ./init-repository line 506
Qt::InitRepository::git_clone_all_submodules('Qt::InitRepository=HASH(0x9337b38)') called at ./init-repository line 670
Qt::InitRepository::run('Qt::InitRepository=HASH(0x9337b38)') called at ./init-repository line 681

It seems that git-protocol is used for v8. This problem can be circumvented by cloning the repository by hand after the error and re-running the script with --force.