Use pre-specified properties for submodules
Use pre-specified properties for submodules

In the mock factory, we forgot to copy the pre-specified properties onto
the properties object when creating submodules.

[endlessm/eos-sdk#3698]

endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib