message: simplify ter record check
diff: @@ -91,7 +91,7 @@ export function getAtomSite(sites: AtomSiteTemplate, terIndices: Set<number>): {
  if (asymIdCounts.has(asymId)) {
  // only change the chains name if there are TER records
  // otherwise assume repeated chain name use is from interleaved chains
  - if (terIndices.size > 0 && asymIdChanged || terIndices.has(i)) {
  + if (terIndices.has(i)) {
  const asymIdCount = asymIdCounts.get(asymId)! + 1;
  asymIdCounts.set(asymId, asymIdCount);
  currLabelAsymId = `${asymId}_${asymIdCount}`;
  