[TYPO3-core] Update git submodules (automatically) in core git repository?

[Roland]

hi everybody,

as far as i understand, the core git submodules are not the very current
ones unless you checkout master in every /typo3/sysext/nameOfTheSubmodule/?

how (ofter) is this updated for the core git repository so that if you do a
git fetch -- all you really have the very current status of every part of
the core - also the submodules? could we make this an automated process?

e.g. i tried to fix the same CGL violations twice lately because
metrics.typo3.org shows some violations allthough the patches in "version"
and "workspaces" were alredy merged.

kind regards

roland