Attempts to remove an attribute from mongo docs that isnt defined in the mongoose schema

broccoli.js

var broccoli = new Food({
  name: 'frozen broccoli',
  organic: true
});

collection-update.js

Food.collection.update({},
  {$unset: {organic: true}},
  {multi: true, safe: true},
  function(err) {
    Food.findById(broccoli, function(err, brocolli) {
      console.log(broccoli.get('organic'));
  }
);

> undefined

model-update.js

Food.update({},
  {$unset: {organic: true}},
  {multi: true, safe: true},
  function(err) {
    Food.findById(broccoli, function(err, broccoli) {
      console.log(broccoli.get('organic'));
    });
  }
);

> true

reload.js

Food.findById(broccoli, function(err, broccoli) {
  console.log(broccoli.get('organic'));
});

> true

remove.diff

  var Food = db.model('Food', new mongoose.Schema({
    name: {type: String, required: true},
-   organic: Boolean
  }, {
    strict: true
  }));

resave.js

broccoli.save(function() {
  Food.findById(broccoli, function(err, broccoli) {
    console.log(broccoli.get('organic'))
  })
});

> true

schema.js

var Food = db.model('Food', new mongoose.Schema({
  name: {type: String, required: true},
  organic: Boolean
}, {
  strict: true
}));

solution.js

Food.collection.update({},
  {$unset: {organic: true}},
  {multi: true, safe: true}
);

unset.js

broccoli.set('organic', undefined);
broccoli.save(function() {
  Food.findById(broccoli, function(err, broccoli) {
    console.log(broccoli.get('organic'));
  });
});

> true