incremental compilation may be fatally broken for this module

[aweeren]

After upgrading to Julia 1.2.0 during Precompilation I get the following:

[ Info: Precompiling DataFlow [a237f610-4214-5ca7-a9c6-385896804134]
WARNING: Method definition iterate(DataFlow.ObjectArraySet{T} where T, Any...) in module DataFlow at D:\Julia-Depot\packages\Lazy\mAoZN\src\macros.jl:285 overwritten at D:\Julia-Depot\packages\Lazy\mAoZN\src\macros.jl:285.
** incremental compilation may be fatally broken for this module **