LucidWorks/banana — pull request #73 by fxprunayre (2014-12-15 17:19:44+00:00)
Title: Null in facet means missing ?

I'm not sure if this depends on the Solr version, but in my case, missing and null values are the same.

A facet query return an item with a null name depending on the facet.missing parameter.

```

51
26
21
48

```

Currently, the missing are added based on the total minus the total of items and a null category is displayed on the charts:
![image](https://cloud.githubusercontent.com/assets/1701393/5440151/41a3f278-8486-11e4-8f2a-cb8058736920.png)

When the missing option is on, we should probably use the facet.missing parameter and rely on the response content for the no value item ?
![image](https://cloud.githubusercontent.com/assets/1701393/5440159/4f7b9fb8-8486-11e4-925e-35e562907f56.png)