HitsList accessor / coercion bug

[strazto]

Hi all - I notice that there appears to be a problem in how this class behaves. When coercing to matrix, as per the documentation's technique, I notice that when this resulting matrix moves past the first Hits element (Ie, at the point of concatenation) things get pretty weird Some of this includes subjectHits even starting to point back at queryHits that came from the first Hits element.

I've verified this by iterating over the HitsList, and examining the individual components, whose behaviors seem internally consistent.