#623 never call initializer delegate on mem pointers
#623 never call initializer delegate on mem pointers

Initializer code for reference types might assume that pointers are
objects, which could crash code. Instead, only run initializer
serializer when required to initialize collections.

cortexlang/cortex,cortoproject/corto,cortexlang/cortex,cortexlang/cortex,cortoproject/corto