Problem with float in range facet

[Jettro Coenradie]

Hi,
I have a float field that I want to use in a range facet. I give one range 
to the facet like the following query.

{
  "query": {
    "matchAll": {}
  },
  "facets": {
    "imageSize": {
      "range": {
        "field": "imageSize",
        "ranges": [
          {
            "from": 1.9
          }
        ]
      }
    }
  }
}

If I have a document with the value 1.9 it is not included in the results. 
If I change the from part to 1.89 however it is included. I am sure the 
type of the field is 1.9, checked it in the mapping.

Any ideas what is the problem?

thanks,
Jettro

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