[2019] Primers and Detonators both need to recieve credit for the combo

This should obviously not allow players to double dip and get credit for two combos off of one, but if two players participate they should both get credit for the combo, and any effects they have that apply to combos should stack.

This would go a long way toward encouraging cooperation, And prevent the annoyance of having your combos "stolen" by someone with a faster detonator.

EDIT: Since so many people seem to be confused about this, I am aware that you generate ult charge whether you primed or detonated the combo. However you do not proc any effects that trigger on a combo or on a kill when someone else detonates your primer, and the Javelin specific detonation effects only consider the detonator.