Merge bitcoin#23061: Fix (inverse) meaning of -persistmempool

faa9c19 doc: Add 23061 release notes (MarcoFalke)
faff17b Fix (inverse) meaning of -persistmempool (MarcoFalke)

Pull request description:

  Passing `-persistmempool` is currently treated as `-nopersistmempool`

ACKs for top commit:
  jnewbery:
    reACK faa9c19
  hebasto:
    ACK faa9c19, I have reviewed the code and it looks OK, I agree it can be merged.

Tree-SHA512: f34a89a07745dabe340eb845b2a348b79c093e9056f7a21c17e1ba2e278177c9b4cf30e8095791fd645a7f90eb34850b2eee0c869b4f6ec02bf749c73b0e52ee

Author: merge-script

test/functional/mempool_persist.py

@@ -139,7 +139,7 @@ def run_test(self):
         self.log.debug("Stop nodes, make node1 use mempool.dat from node0. Verify it has 6 transactions")
         os.rename(mempooldat0, mempooldat1)
         self.stop_nodes()
-        self.start_node(1, extra_args=[])
+        self.start_node(1, extra_args=["-persistmempool"])
         assert self.nodes[1].getmempoolinfo()["loaded"]
         assert_equal(len(self.nodes[1].getrawmempool()), 6)