public void dataTypeChanged(DataType dt, boolean isAutoChange) {
		if (dt instanceof Enum) {
			enumValueMap = null;
		}
		if (!isAutoChange && creatingDataType == 0) {
			// auto-changes should not be synced
			updateLastChangeTime();
			setDirtyFlag(dt);
		}
		defaultListener.dataTypeChanged(this, dt.getDataTypePath());
	}
Notification when data type is changed.
@param dt data type that is changed
@param isAutoChange true if change was an automatic change in response to
another datatype's change (e.g., size, alignment).
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/DataTypeManagerDB.java