Don't understand exactly what you mean by hard switching, can you elaborate?
Anyways the IR2113 has a shutdown circuit that its latched. Which means that once it is disabled (via your comparator) it will remain like that until the next trigger pulse arrives which resets the latch.
So essentially you'll have repetitive very high current pulses for as long as the short circuit condition remains in place, this could lead to hot spots on the IGBT...is this your concern?