Sphinx warning counted as Doxygen

[Letme]

I have following output of warnings (sphinx):

<rst_prolog>:9: WARNING: Field list ends without a blank line; unexpected unindent.
<rst_prolog>:9: WARNING: Field list ends without a blank line; unexpected unindent.

With warnings plugin in command parsing (and output file) configuration to detect both Sphinx and Doxygen warnings, but that above warning is counted as Doxygen warning.

{
    "sphinx": {
        "enabled": true,
        "min": 0,
        "max": 0
    },
    "doxygen":{
        "enabled": true,
        "min": 0,
        "max": 0
    }
}

It seems like some plugin outputs bad Sphinx warning, but it should be counted as Sphinx warning and not as doxygen.

[JasperCraeghs]

Is the issue resolved when you remove the rst_prolog variable and merge its contents into rst_epilog in conf.py?