Fix update ticket status when ticket task is de-scheduled

[RomainLvr]

Q	A
Bug fix?	yes
New feature?	no
BC breaks?	no
Deprecations?	no
Tests pass?	yes
Fixed tickets	!32381

When a task is de-scheduled, the ticket status remains In progress (Scheduled) instead of being changed back to In progress (Assigned).

[trasher]

Please add a test

[Rom1-B]

There is already a function updateParentStatus, which you could use

[cedric-anne]

This method may also be executed, for instance, from the ITILFollowup context. In this case, the begin field would not exist and a SQL error will probably be raised.

A test case should probably be added to ensure that adding a followup on a ticket that has the CommonITILObject::PLANNED status will not fail.

Also, should the parent status be updated if the begin filed was not changed ?

Suggested change

	} elseif ($parentitem->fields["status"] == CommonITILObject::PLANNED) {
	} elseif (
	$parentitem->fields["status"] == CommonITILObject::PLANNED
	&& in_array('begin', $this->updates)
	&& $this->isField('begin')
	) {

[cedric-anne]

I change the target to main branch. This can be considered as a new feature and may have unexpected side effects.