message: Fix maxuploadtarget.py
  Ever since the May152018 hardfork the minimum EB is set to 32MB, but
  for this test to run in a reasonable amount of time we need to
  set the EB to 1MB and also lower the mining block size as well.
diff: @@ -195,6 +195,12 @@ class MaxUploadTest(BitcoinTestFramework):
  # Test logic begins here
  + # Must reset these settings because since the May152018 hardfork the minimum EB is set to 32MB on startup,
  + # but in order for this test to run properly and in a reasonable amount of time we set these values back
  + # to something smaller.
  + self.nodes[0].setminingmaxblock(self.blockmaxsize);
  + self.nodes[0].setexcessiveblock(EXCESSIVE_BLOCKSIZE, 1)
  +
  # Now mine a big block
  self.mine_big_block(self.nodes[0], self.nodes[0].getnewaddress())
  