1257347 - PositiveOptionValue doesn't serialize to JSON properly for config.status

Status: NEW

(Firefox Build System :: General, defect)

Description

[Mike Hommey [:glandium]]

When I was working on bug 1257104, I hit an interesting JSON serialization failure, which can be reduced to this:

>>> print json.dumps({'FOO': PositiveOptionValue()}, indent=4)
{
    "FOO": 
    ]
}

This only happens with indent set:
>>> print json.dumps({'FOO': PositiveOptionValue()})
{"FOO": []}