Intermittent failure of master-infinispan InfinispanClusterServiceTest.testFailover

[jamesnetherton]

I think I've only ever seen it happen on the native IT test and not JVM mode.

2026-07-20T14:00:25.8570495Z [ERROR]   InfinispanClusterServiceTest.testFailover:78 
2026-07-20T14:00:25.8570925Z Expected: an empty string
2026-07-20T14:00:25.8571192Z      but: was "leader"

Full test logs:

master-infinispan-failure.log