models2: Fixed editing characters erasing all unedited data.

models/characters/edit.go

@@ -23,7 +23,7 @@ func Edit(character models.Character, name, shortName, description *string) (mod
 		changes["description"] = *description
 	}
 
-	err := collection.UpdateId(character.ID, changes)
+	err := collection.UpdateId(character.ID, bson.M{"$set": changes})
 	if err != nil {
 		return models.Character{}, err
 	}