Method setModified

app/src/DataModel/ProjectModel.cpp:4834–4844

* @brief Updates the project's modification flag and emits modifiedChanged; a * request to dirty a truly empty project intentionally leaves the flag clean for * the dirty-flag UX but still emits contentTouched so the backup layer (whose * snapshot hash decides) gets nudged. */

 * snapshot hash decides) gets nudged.
 */
void DataModel::ProjectModel::setModified(const bool modified)
{
  if (modified && m_groups.empty() && m_actions.empty() && m_tables.empty() && m_workspaces.empty()
      && !m_customizeWorkspaces && !m_locked && m_hiddenGroupIds.isEmpty()) {
    Q_EMIT contentTouched();
    return;
  }

  m_modified = modified;
  Q_EMIT modifiedChanged();
}

/**
 * @brief Sets source[0].frameParserCode and emits frameParserCodeChanged.