Can't init-repository on branch 5.6.0, wrong branch for qtenginio

+ git config remote.gerrit.fetch +refs/heads/*:refs/remotes/gerrit/* /heads/
+ git clone --branch 1.6.0 git://code.qt.io/qt/qtenginio.git qtenginio
Nach »qtenginio« wird geklont
fatal: Remote-Branch 1.6.0 nicht im Upstream-Repository origin gefunden
git clone --branch 1.6.0 git://code.qt.io/qt/qtenginio.git qtenginio exited with status 32768 at init-repository line 187.
	Qt::InitRepository::exe('Qt::InitRepository=HASH(0x1b65e98)', 'git', 'clone', '--branch', 1.6.0, 'git://code.qt.io/qt/qtenginio.git', 'qtenginio') called at init-repository line 433
	Qt::InitRepository::git_clone_one_submodule('Qt::InitRepository=HASH(0x1b65e98)', 'qtenginio', 'qt/qtenginio.git', 1.6.0) called at init-repository line 339
	Qt::InitRepository::git_clone_all_submodules('Qt::InitRepository=HASH(0x1b65e98)', 'qt/qt5', 0, 'default') called at init-repository line 526
	Qt::InitRepository::run('Qt::InitRepository=HASH(0x1b65e98)') called at init-repository line 537