Boone Gorges 3f7bc21548 Taxonomy: Force a DISTINCT term query when result count matters. ...

Generally, duplicate terms returned by a term query are eliminated in PHP,
after the database query takes place. This technique doesn't work properly
when the query parameters specify the `number` of results, since the results
of a `SELECT ... LIMIT x...` query may be deduplicated to a count less than
`x`. In these cases, we force the original query to be `DISTINCT`.

Props elvishp2006.
Fixes #41796.
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2017-09-13 14:48:45 +00:00

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