Yes. And the magnetic field is instantaneously proportional to coil current.
No argument. The switch current goes to zero first, the coil current detours first to the coil capacitance, and to snubber, if any. Then the voltage rises till either the capacitance (and snubber) absorb all the energy stored in the coil, or a clamp voltage is reached. If the latter (as the op is doing) then the current detours to the clamp. The current continues to ramp toward zero as does the magnetic field. As the current and magnetic field pass through zero, the voltage starts to swing back toward that connected to the other end of the coil (toward zero volts across the coil). But to change the voltage across the coil requires current to charge the stray capacitance across those nodes, so this current passes through the coil and and this causes a reversal of the magnetic field.
Perhaps I misunderstood your last post when you said, "Allowing current to flow after the switch opens will mean that the magnetic field will continue to exist while it collapses, and if current continues to flow, the magnetic field will reverse."
How could the field not continue to exist while it collapses? And the coil current must cease and change directions before the field ceases and changes directions.
My only point was that the applicable generalization for this op is that the magnetic field is instantaneously proportional to the coil current at all times, and the field reverses exactly when the current reverses. If you agree with this than we are on the same page.