Check that full() in udf_buffer is not empty and assert (#1753)
Check that full() in udf_buffer is not empty and assert (#1753)


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