M4 Deprecation warning

[rezeau]

Questionnaire 2022030301 on Moodle 4.0.2 Debug Full On
When setting Completion tracking I get this error message:
_get_completion_state() callback functions such as questionnaire_get_completion_state have been deprecated and should no longer be used. Please implement the custom completion class mod_questionnaire\completion\custom_completion which extends \core_completion\activity_custom_completion.

line 729 of \lib\completionlib.php: call to debugging()
line 666 of \lib\completionlib.php: call to completion_info->internal_get_state()
line 1004 of \lib\completionlib.php: call to completion_info->update_state()
line 690 of \course\modlib.php: call to completion_info->reset_all_state()
line 168 of \course\modedit.php: call to update_moduleinfo()

[rezeau]

Just noticed that this new "custom completion class" won't be deprecated before Moodle 4.3.
@deprecated since Moodle 3.11
@todo MDL-71196 Final deprecation in Moodle 4.3

[mchurchward]

I believe this may have been dealt with in #430
Can you confirm?