Why does this relationship query return results that don't meet condition?

[lingvisa]

MATCH p=()-[r:coOccur]->() WHERE r.confidence>0.9 RETURN p limit 25

I have a graph that have all Tag nodes and their coOccur relationship. The coOccur has a property confidence which has value between 0 and 1. However, my query above also returns relationships that have confidence<0.9. I thought the WHERE clause doesn't effect. However, if I change the RETURN clause to;

RETURN count(p)

the number of relationships changes when I vary the confidence score, and this seems to say that the r.confidence is effective.

So why does the query give relationships with lower confidence than 0.9?

[glilienfield]

Seems odd. I created some test data and used your query. It worked as expected. See below...

Can you provide some test data and/or screenshots?

Test Data:

Query Results: