It seem a float64 of value 0.0 as types interface{} can't be compared equal
to 0 in an exhaustive case clause type list, but can be compared equal in
almost any other scenario.
https://play.golang.org/p/t2u2GGp565
I find this unexpected. Could someone explain how case clause type lists in
type assertions work?
The language specification states:
> In clauses with a case listing exactly one type, the variable has that
type; otherwise, the variable has the type of the expression in the
TypeSwitchGuard.
In the provided playground is no TypeSwitchGuard given, so this rule should
not affect behaviour.
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