Our planing forms are often getting chewed up by the corner of the plane blade. This is a super sharp dangerous intersection. The sharp corner is almost never used to cut bamboo so soften that corner with some gentle filing and round both those corners off. It does not affect the performance of your blade and will save the deck of your planing forms. Be very careful in general handling these blades, if you drop one on your foot you could end up in a hospital, so go ahead and cut some corners, your forms will thank you.
I am a cane rod builder and co-founder of Canadian Cane