[qa] Ensure bitcoind processes are cleaned up when tests end

test/functional/test_framework/test_framework.py

@@ -148,6 +148,8 @@ class BitcoinTestFramework():
             if self.nodes:
                 self.stop_nodes()
         else:
+            for node in self.nodes:
+                node.cleanup_on_exit = False
             self.log.info("Note: bitcoinds were not stopped and may still be running")
 
         if not self.options.nocleanup and not self.options.noshutdown and success != TestStatus.FAILED: