Is union of targets distinct?

https://www.w3.org/TR/shacl/#targets: "union of terms produced by the
individual targets that are declared by the shape".

Say I have a shape with the following targeting:

sh:targetClass :Foo;
sh:targetSubjectsOf :bar, :baz;
sh:targetObjectsOf :blor;

Say a node matches all of these conditions:
will it be selected for validation once and not 4 times?

I.e., is the "union of terms" supposed to be DISTINCT?
(Union in mathematics is distinct, but not in SPARQL)

-- 
Vladimir Alexiev, PhD, PMP
Chief Data Architect
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