hmarr/mongoengine — comment on commit 7b1860d17b0d60bd11aaace9052bd58a2d702cbf
File:  line 0
By jpfarias:

Just one note...

On ```def _get_changed_fields(self, key='', inspected=[]):``` inspected is default to the empty list, on all other functions it is default to None, perhaps should make it default to None here as well.