Finski - many thanks for those tips - appreciated.
If this were to happen to me, I had indeed planned on smashing up the combs (maybe with a blender) and adding warm water - to use the chemical characteristics of honey (water-soluble) and wax (non-water-soluble) to separate them - then maybe ... extract the excess water by freezing it out ?
But simply spraying an open comb with water sounds like a lot less work ...
Presumably bees can deal with any smaller quantities of crystallised honey in the brood combs themselves without too much trauma ? Your post suggests that would be the case.