define_restore_log_rules() method needs to be overridden in each subclass of restore_activity_task

[nadavkav]

While restoring a mod/tab activity from Moodle 2.4 to another Moodle 2.4 (or 2.7), I am getting the following error:

define_restore_log_rules() method needs to be overridden in each subclass of restore_activity_task

Debug info:
Error code: codingerror
Stack trace:
line 260 of /backup/moodle2/restore_activity_task.class.php: coding_exception thrown
line ? of unknownfile: call to restore_activity_task->define_restore_log_rules()
line 50 of /backup/util/helper/restore_logs_processor.class.php: call to call_user_func()
line 73 of /backup/util/helper/restore_logs_processor.class.php: call to restore_logs_processor->__construct()
line 2323 of /backup/moodle2/restore_stepslib.php: call to restore_logs_processor::get_instance()
line 131 of /backup/util/plan/restore_structure_step.class.php: call to restore_activity_logs_structure_step->process_log()
line 103 of /backup/util/helper/restore_structure_parser_processor.class.php: call to restore_structure_step->process()
line 139 of /backup/util/xml/parser/processors/grouped_parser_processor.class.php: call to restore_structure_parser_processor->dispatch_chunk()
line 91 of /backup/util/helper/restore_structure_parser_processor.class.php: call to grouped_parser_processor->postprocess_chunk()
line 148 of /backup/util/xml/parser/processors/simplified_parser_processor.class.php: call to restore_structure_parser_processor->postprocess_chunk()
line 92 of /backup/util/xml/parser/processors/progressive_parser_processor.class.php: call to simplified_parser_processor->process_chunk()
line 169 of /backup/util/xml/parser/progressive_parser.class.php: call to progressive_parser_processor->receive_chunk()
line 253 of /backup/util/xml/parser/progressive_parser.class.php: call to progressive_parser->publish()
line ? of unknownfile: call to progressive_parser->end_tag()
line 158 of /backup/util/xml/parser/progressive_parser.class.php: call to xml_parse()
line 137 of /backup/util/xml/parser/progressive_parser.class.php: call to progressive_parser->parse()
line 105 of /backup/util/plan/restore_structure_step.class.php: call to progressive_parser->process()
line 153 of /backup/util/plan/base_task.class.php: call to restore_structure_step->execute()
line 192 of /backup/moodle2/restore_activity_task.class.php: call to base_task->execute()
line 163 of /backup/util/plan/base_plan.class.php: call to restore_activity_task->execute()
line 157 of /backup/util/plan/restore_plan.class.php: call to base_plan->execute()
line 315 of /backup/controller/restore_controller.class.php: call to restore_plan->execute()
line 147 of /backup/util/ui/restore_ui.class.php: call to restore_controller->execute_plan()
line 46 of /backup/restore.php: call to restore_ui->execute()

[nadavkav]

Fix: nadavkav@18acbfc