bratwurzt opened a new pull request #7704:
URL: https://github.com/apache/ignite/pull/7704
Because QueryKeyValueIterable does not implement spliterator, calling
`spliterator().hasCharacteristics(Spliterator.SIZED)` will construct a new
Spliterator with
`java.util.Spliterators#spliteratorUnknownSize(java.util.Iterator<? extends T>,
int)` and that will call
`org.apache.ignite.internal.processors.cache.QueryCursorImpl#iter` again, thus
throwing exception `throw new IgniteException("Iterator is already fetched or
query was cancelled.")`
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