Qt from git repo fails when at ./init-repository

After having cloned the Qt repo via

git clone git://code.qt.io/qt/qt5.git

and then running ./init-repository it leads to this:

fatal: Needed a single revision
Unable to find current revision in submodule path 'qtpositioning'

As a workaround I can do

git submodule update --init --recurse

but I am not if this is the interest of the authors.