Disapperaing properties with empty string as value

[EnocMartinez]

Not sure if this is a feature or a bug, but the FROST-Server (I'm using docker v2.3) erases all properties with empty strings as value. For example, I post the following Thing:

{
  "name" : "Kitchen",
  "description" : "The Kitchen in my house",
  "properties" : {
    "someProperty" : true,
    "emptyProperty": ""
  }
}

And when I do a query, the emptyProperty field is missing:

{
  "name" : "Kitchen",
  "description" : "The Kitchen in my house",
  "properties" : {
    "someProperty" : true
  }
}

However, the emptyProperty is indeed in the database:

{
  "someProperty": true,
  "emptyProperty": ""
}

I check the standard and I couldn't find any mention to empty properties. Is this behavior intended?

[hylkevds]

That behaviour is not explicitly specified. It's simply the default behaviour of (most) json libraries, to leave out empty strings.
That could probably be made into a configuration option.

[EnocMartinez]

An option to control this behavior would be much appreciated, thanks