local succB = 1
local errA, keyA = core.hardnested(blockno, keytype, key, trgblockno, '0', trgkey, 0,0,0,0)
keyA = keyA or ""
local succB = 1
local errA, keyA = core.hardnested(blockno, keytype, key, trgblockno, '0', trgkey, 0,0,0,0)
keyA = keyA or ""