David Roberts 83321b0e5e [ML] Fix isNoop() for datafeed update (#48046)
max_empty_searches = -1 in a datafeed update implies
max_empty_searches will be unset on the datafeed when
the update is applied.  The isNoop() method needs to
take this -1 to null equivalence into account.
2019-10-15 12:28:53 +01:00
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