Method reset

src/backend/core/AbstractColumn.cpp:522–527

! * resets the connections for the dependent objects like plots and formulas in other columns * to the dataChanged signal in the current column. */

 * to the dataChanged signal in the current column.
 */
void AbstractColumn::reset() {
	// don't disconnect from all signals since we'd loose all connections done in AbstractAspect::connectChild().
	// disconnect from the dataChanged signal only, the reconnect is triggered in Project::descriptionChanged().
	Q_EMIT aboutToReset(this);
	disconnect(this, &AbstractColumn::dataChanged, nullptr, nullptr);
}

/*!
 * invalidates the internal properties of the columns and emits the signal \c dataChanged().