Before revision:  We prove existence of solutions to the corresponding conditional McKean--Vlasov equation, by realising them as suitable limit points of the finite-dimensional particle system , and we show that the pathwise realisation of the common noise can both trigger and prevent blow-ups .
After revision:  We prove existence of solutions to the corresponding conditional McKean--Vlasov formulation of the model. First and foremost, we show that there are global solutions to this McKean--Vlasov problem, which can be realised as limit points of the finite-dimensional particle system , and we show that the pathwise realisation of the common noise can both trigger and prevent blow-ups .