Improve block_exists table lookup order (#1765)
Improve block_exists table lookup order (#1765)


clemahieu/raiblocks,SergiySW/raiblocks,SergiySW/raiblocks,clemahieu/raiblocks,SergiySW/raiblocks,clemahieu/raiblocks,clemahieu/raiblocks,SergiySW/raiblocks,SergiySW/raiblocks,clemahieu/raiblocks,clemahieu/raiblocks