Method modifyAndUpdate

src/commands/CmdModify.cpp:129–149

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int CmdModify::modifyAndUpdate(Task& before, Task& after,
                               std::map<std::string, std::string>* projectChanges /* = NULL */) {
  // This task.
  auto count = 1;

  updateRecurrenceMask(after);
  feedback_affected("Modifying task {1} '{2}'.", after);
  feedback_unblocked(after);
  Context::getContext().tdb2.modify(after);
  if (Context::getContext().verbose("project") && projectChanges)
    (*projectChanges)[after.get("project")] = onProjectChange(before, after);

  // Task has siblings - modify them.
  if (after.has("parent")) count += modifyRecurrenceSiblings(after, projectChanges);

  // Task has child tasks - modify them.
  else if (after.get("status") == "recurring")
    count += modifyRecurrenceParent(after, projectChanges);

  return count;
}

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int CmdModify::modifyRecurrenceSiblings(