message: fix rare test error
diff: @@ -248,7 +248,15 @@ class BUIP055Test (BitcoinTestFramework):
  # TEST REQ-3: that a <= 1 MB block is rejected by the fork nodes
  # the rejection happens for the first block whose nTime is
  - self.nodes[3].generate(15)
  +
  + # If I generate lots of blocks at once, via generate(15) it is possible that
  + # the small block fork nodes will disconnect from the large block nodes before
  + # fully syncing because they get the invalid fork block.
  + # This won't happen in mainnet because blocks aren't solved instantly and because
  + # other fork nodes will relay the blocks.
  + for i in range(0,15):
  + self.nodes[3].generate(1)
  + time.sleep(2)
  sync_blocks(self.nodes[2:])
  sync_blocks(self.nodes[0:2])
  