Hi Marius,
The current chaining code assumes there will never be too complex
chains. Which is probably true for most jobs but could become in issue
in some cases.
If you want to make sure the chain is broken, you can start a new
chain using `startNewChain()` on all single output operators.
Cheer
Hi Marius,
the chaining code is still somewhat fragile and some stuff in there are
leftovers. For example, StreamGroupedFold can only be used on a
KeyedStream, which means that it can never be within a chain because the
shuffle always breaks a chain. Specifying HEAD here is therefore redundant.
I t
