[indirect.asgn] std::indirect does not have a “contained value”

[xmcgcg]

[indirect.asgn] p4 says:

If an exception is thrown during the call to T’s copy assignment, the state of its contained value is as defined by the exception safety guarantee of T’s copy assignment.

The wording is copied from the description of the copy assignment operator of std::optional, which has a contained value (defined in [optional.optional.general] p1). For std::indirect, there is no “contained value”, “owned object” should be used instead.