Explosives - Fix objNull reported as source and instigator in BI handleDamage event for explosive triggered by timer

[Vdauphin]

title

This fix only works on client. I don't know if this function is supposed to be call server side.
As workaround, we could check if player is not null and pass _explosive as instigator.

When merged this pull request will:

• Pass the player setting the timer as instigator
• relevent function:

  • ACE3/addons/explosives/functions/fnc_detonateExplosive.sqf

    Line 58 in 06336b8

    [QGVAR(detonate), [_unit, _item select 0, _item select 1]] call CBA_fnc_serverEvent;

  • ACE3/addons/explosives/XEH_postInit.sqf

    Line 28 in 87cfd96

    _explosive setShotParents [_unit, _unit];

[PabstMirror]

The only case it wouldn't be player is if someone is using the AI Speed Dial, which is probably rare
But it might be better to use c29622f
and pass the specific unit to this func

[PabstMirror]

@Dahlgren
automaton checks for pboProject claim it failed with

onPlace = QUOTE([ARR_4(_this select 1, _this select 3 select 0, '#timer', _this select 0)] call FUNC(startTimer); false);
In File z\ace\addons\explosives\ACE_Triggers.hpp: circa Line 59 Unknown #

github action is using DePbo.7.97
latest free is 8.35 and it builds fine on that

we could also just change the 3rd arg to nil