The following code gives a wrong deprecation message since DMD 2.088:

```
import std.typecons;

alias T = Nullable!ulong;
T normal;
T[4] array;
T[string] aa;

void g(string s, ulong value) {
    normal = value; // no problem
    array[0] = value; // no problem
    
    aa[s] = value;
    // Should directly use opAssign. Instead gives wrong deprecation message:
    // std.typecons.Nullable!ulong.Nullable.get_ is deprecated - Implicit conversion with alias Nullable.get this will be removed after 2.096. Please use .get explicitly.
    
    aa[s].opAssign(value); // workaround that works without deprecation msg
}

void main() {
    g("hoi", 1);
}
```

The deprecation message is invalid: alias this is never used (because Nullable.opAssign is directly callable). Moreover, the suggested fix (".get()") results in wrong code.