Github user dawidwys commented on a diff in the pull request:
https://github.com/apache/flink/pull/4195#discussion_r124492599
--- Diff:
flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/NFA.java ---
@@ -237,8 +254,15 @@ public boolean isEmpty() {
computationState.getCounter());
newComputationStates = Collections.emptyList();
+ nfaChanged = true;
--- End diff --
Just a question/side comment. This case always happens in pair with pruning
sharedBuffer right? (NFA:330)
I would still leave it here, cause it's better be safe than sorry.
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