#1445 bug issue

https://github.com/balderdashy/sails/pull/1445

This change is only valid if the previous model that was found via Cell.findOne, did not include a populate query.

                function deleteOldCell(callBack){
                    Cell.findOne(cell.id).exec(function (err,c){
                        if(err){
                            callBack(err)
                        }
                        if(!c || c.length === 0){
                            callBack(null)
                        } else {
                            Cell.destroy({id:c.id}).exec(function (err){
                                if(err){
                                    callBack(err)
                                } else {
                                    Cell.publishDestroy(c.id,false,{previous:c})
                                    callBack(null)
                                }                               
                            })
                        }
                    })
                }
In the event that a populate query was made, such as this:

                function deleteOldCell(callBack){
                    Cell.findOne(cell.id).populate('grid').exec(function (err,c){
                        if(err){
                            callBack(err)
                        }
                        if(!c || c.length === 0){
                            callBack(null)
                        } else {
                            Cell.destroy({id:c.id}).exec(function (err){
                                if(err){
                                    callBack(err)
                                } else {
                                    Cell.publishDestroy(c.id,false,{previous:c})
                                    callBack(null)
                                }                               
                            })
                        }
                    })
                }
the old version:

ReferencedModel.publishUpdate(previous[association.alias][ReferencedModel.primaryKey]
is a valid reference, since the previous value's association.alias will be a object instead of a number.

There has to be some kind of checking to see whether the previous value being passed in is an object or not and pass in the correct key.