Variables not being conserved between modules

[mparpaillon]

Hello,

I'm working with a modular application where I'm using a singleton as described in the singleton pattern by Addy osmani but without the Closure since it's already handled by Browserify.

  var instance;

  function init() {  
    // Init instance
  };

  return {
    getInstance: function () {
      if ( !instance ) { // With beefy, this is always undefined
        instance = init();
      }
      return instance;
    }
  };

However, using beefy as a build tool I've encountered a significant bug; The value of the variable instance is not being conserved between require calls. I've tested the standard Browserify build and it seems to work properly.

What could be causing this behaviour ?