How may I get REPLAYGAIN_TRACK_GAIN sorted in value order?

Here sort ignores the sign.

Thanks.

Excerpt from my current columns.ini ...

[#107]
width=71
numeric=1
name=AlbumGain
value=%REPLAYGAIN_ALBUM_GAIN%
sort=$num($replace(%REPLAYGAIN_ALBUM_GAIN%,'.',),1)
field=
enabled=1

[#108]
width=71
numeric=1
name=AlbumPeak
value=%REPLAYGAIN_ALBUM_PEAK%
sort=$replace(%REPLAYGAIN_ALBUM_PEAK%,'.',)
field=
enabled=1

[#109]
width=71
numeric=1
name=TrackGain
value=%REPLAYGAIN_TRACK_GAIN%
sort=$num($replace(%REPLAYGAIN_TRACK_GAIN%,'.',),1)
field=
enabled=1

[#110]
width=71
numeric=1
name=TrackPeak
value=%REPLAYGAIN_TRACK_PEAK%
sort=$replace(%REPLAYGAIN_TRACK_PEAK%,'.',)
field=
enabled=1

DD.20140818.0931.CEST

Thanks D.

I would be nice if this was fixed in the exe.