message: fix serialmapping
diff: @@ -80,14 +80,14 @@ function initialize(structure: Structure, props: ANVILProps): ANVILContext {
  centroidHelper.includeStep(vec);
  // keep track of offsets and exposed state to reuse
  - offsets[m] = l.element;
  + offsets[m] = structure.serialMapping.getSerialIndex(l.unit, l.element);
  exposed[m] = AccessibleSurfaceArea.getValue(l, asa) > props.asaCutoff;
  m++;
  }
  }
  - // omit potentially empty tail
  + // omit potentially empty tail1
  offsets = offsets.slice(0, m);
  exposed = exposed.slice(0, m);
  