public long calculate(
     DefaultIssue issue, Collection<IssueChangeDto> debtChangelog, Period period) {
   if (issue.creationDate().getTime() > period.getSnapshotDate() + 1000L) {
     return MoreObjects.firstNonNull(issue.effortInMinutes(), 0L);
   }
   return calculateFromChangelog(issue, debtChangelog, period.getSnapshotDate());
 }