[CX] on remote link down, fixer hangs trying to refresh config

{

"blocked_count": 8312,

"id": 236,

"lock_name": "com.couchbase.client.deps.io.netty.bootstrap.AbstractBootstrap$PendingRegistrationPromise@7c8896d6",

"name": "FixerThread:cbas:remote_links/n_1 remote NONE:travel-sample:2db29595d81f1e9163bdd481ef5e85db:0",

"stack": [

"java.base@11.0.11/java.lang.Object.wait(Native Method)",

"java.base@11.0.11/java.lang.Object.wait(Unknown Source)",

"app//com.couchbase.client.deps.io.netty.util.concurrent.DefaultPromise.await0(DefaultPromise.java:679)",

"app//com.couchbase.client.deps.io.netty.util.concurrent.DefaultPromise.await(DefaultPromise.java:298)",

"app//com.couchbase.client.dcp.conductor.NonStreamingConfigProvider.tryConnectHost(NonStreamingConfigProvider.java:111)",

"app//com.couchbase.client.dcp.conductor.NonStreamingConfigProvider.tryConnectHosts(NonStreamingConfigProvider.java:86)",

"app//com.couchbase.client.dcp.conductor.NonStreamingConfigProvider.refresh(NonStreamingConfigProvider.java:74)",

"app//com.couchbase.client.dcp.conductor.Fixer.refreshConfig(Fixer.java:321)",

"app//com.couchbase.client.dcp.conductor.Fixer.fixStreamEnd(Fixer.java:267)",

"app//com.couchbase.client.dcp.conductor.Fixer.handle(Fixer.java:216)",

"app//com.couchbase.client.dcp.conductor.Fixer.run(Fixer.java:82)",

"java.base@11.0.11/java.lang.Thread.run(Unknown Source)"

],

"state": "TIMED_WAITING"

},