intermittent issue in rpc_signer.py (enumeratesigners timeout) under GLIBCXX debug mode #32524
Description
https://cirrus-ci.com/task/5094568045051904?logs=ci#L4419
[18:26:32.573] test_framework.authproxy.JSONRPCException: 'enumeratesigners' RPC took longer than 1200.000000 seconds. Consider using larger timeout for calls that take longer to return. (-344)
Looking at the full log, the test is just idle and then times out. However, there is no indication why the RPC does not proceed.