Fixes for hasMany relations, and catch more docs in `_memo_related_docs`.
Fixes for hasMany relations, and catch more docs in `_memo_related_docs`.

Handle cases where hasMany relations are set hard through __setattr__
by `hydrate`. Also, setting `_initialised` appears to be very special
in some way, as it magically replaces DbRefs by Documents on a Document??

WARNING: messy code... debug mode

ProgressivePlanning/mongoengine-relational