ReferenceEditQuantity not accepting all references

The ReferenceEditQuantity creates a list of all possible paths in a referenced archive that could match the referenced type (the dialog will give you an autocomplete dialog where this is very useful). This same list is used to check the validity of references. When the archive contains m_defs to override definitions, the list of options is incomplete, as the overridden definition may introduce new valid matches. This problem is similar to #2164 (closed).