Souldbound Burn

[TheSmartnik]

Hi, I have a couple of question regarding souldbound contract.

First.

nft-contracts/packages/contracts/sources/sbt-item.fc

Line 164 in debcd85

send_msg(flag::regular(), sender_address, 0, op::excesses(), query_id, null(), 128);

Why the flag here isn't 128 + 32. Considering that we want to burn the contract, it seems like a more appropriate solution.

Second.

nft-contracts/packages/contracts/sources/sbt-item.fc

Lines 166 to 168 in debcd85

	storage::owner_address = null_addr();
	storage::authority_address = null_addr();
	store_data();

Even if for some reason 128 is appropriate flag. Why not set collection address to null() as well. That way It'll auto detach from collection in every parsing tool