Weird XML behaviour - mixes L and R of a stereo track on export

Question

Situation:
1. I have a sequence with a dual mono track (stereo track with L on track A1, R on track A2). L = microphone 1, R= microphone 2. When exporting an XML (e.g. for sync in PluralEyes), the channels get mixed together, like a mono mixdown.
Here is a screen vid showing a round trip of the XML and what it is doing to the audio: https://www.dropbox.com/s/2st9308p3sjq4qd/Premiere%20Weird%20XML%20Audio.mp4
Note: A temporary work around once I have my sequence synced by PluralEyes is to make the audio media offline, then relink it. This seems to reset Premiere's referencing of the file, and L and R are on A1 and A2 once again.

Answer 1

Ok, so here's the solution that I've worked out.
I created a new mono submix track at the bottom of all my tracks. Then in the Audio Mixer, I remapped my stereo audio track to go to the mono submix before going to the Master. This forces all of the audio to come out as mono in the end, which is exactly what I was looking for.
For what it's worth, a stereo track filled right or left doubles the audio and is louder then the normal stereo track, even though it's playing two channels of audio they don't add up to the loudness of the dual mono. I just applied a +4dB gain to the stereo sections to compensate for this.