mongoose behavior of pre/post-init middleware

gistfile1.txt

var mongoose = require('../lib/mongoose')
mongoose.connect('mongodb://localhost/test');

var Document = null, DocumentSchema = new mongoose.Schema({
  data: { type: String },
});

DocumentSchema.pre('init', function(next) {
  console.log('pre-init: ' + JSON.stringify(this));
  next();
});

DocumentSchema.post('init', function() {
  console.log('post-init: ' + JSON.stringify(this));
});

DocumentSchema.method({
  fubar: function(hint) {
    console.log(hint + ': ' + JSON.stringify(this));
  },
});

mongoose.model('Document', DocumentSchema);
Document = mongoose.model('Document');

var doc = new Document({ data: 'this is a document' });
doc.fubar('fresh document');

doc.save(function(err) {
  Document.findById(doc._id, function(err, doc) {
    doc.fubar('from database');
  });
})

Just leaving a note that the pre and post init hooks are not getting fired... at least not when creating a new document in the current version (3.8.8).

Same for me.