HCL Domino Ideas Portal
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I'm aware of the work arounds but like you say they lots of extra checks/error handling, e.g. a forall on an empty should not generate an error is should just skip over it, like it does with empty lists.
That's possible today by using uninitialized dynamic arrays. It does require some error handling because LS functions like Ubound raise errors when applied to uninitialized arrays. But it can be done.