looks like it relates to something in blinker.m
Actually, it shows even if you comment out this line in player.xml:
<script id="blinker" file="scripts/blinker.maki"/>What blinker.m has to do with it is that it gets songinfo from the "hidden" tag of player-normal-group.xml, from which it extracts the bitrate to be displayed in the area defined by the "Bitnum" tag and stereo/mono to be displayed in the area defined by the "stereostrg" tag.
The coordinates of the "hidden" tag of player-normal-group.xml define the area exactly where the duplicate bitrate number is displayed.