Putative fix for reindex to reference setting - since I only want translation not true reindex, only do this if R component of reindex (i.e. not T) is I3.
Putative fix for reindex to reference setting - since I only want translation not true reindex, only do this if R component of reindex (i.e. not T) is I3.

xia2/xia2,xia2/xia2