'where' and regex issue

Something is wrong with 'where' when passing regex there, for example:

``` coffeescript
Page.paginate
where:
title: new RegExp("a")
```

It will not work - it does not work when i'm trying. BUT, when i'll hardcode the same condition inside of the helper function:

``` javascript
var foo = { title: new RegExp("a") };
Model.all({ limit: limit, offset: (page - 1) * limit, order: order, where: foo, function (err, records) {
```

It works! I was trying to debug it, with console.dir/log and everything was fine in console output, 'foo' looks exactly like 'opts.where':

```
{ title: /a/ }
{ title: /a/ }
```

I have no idea what is going on there, so i'm reporting it as issue ;-)

PS. as You can see i'm using coffeescript in my controllers, and mongoose db adapter, so perhaps it is (in some weird way) related?

Examina el manejo de la cláusula 'where' en el plugin de paginación, probablemente en el método principal 'paginate'. Compara cómo se pasa la expresión regular desde CoffeeScript frente a JavaScript codificado. Verifica la integración del adaptador de mongoose y observa si el objeto de expresión regular se está serializando o pasando de manera diferente. Ejecuta los fragmentos de código proporcionados para reproducir el problema, luego rastrea el procesamiento de 'where' en el plugin.

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