Collection expression with single element failed to serialize

[Odonno]

I currently have an issue with a particular part of my code. Here is the exception:

   Did not expect any exception, but found System.ArgumentException: GenericArguments[0], '<>z__ReadOnlySingleElementList`1[My.Models.Model]', on 'Dahomey.Cbor.Serialization.Converters.CollectionConverter`2[TC,TI]' violates the constraint of type 'TC'.
 ---> System.TypeLoadException: GenericArguments[0], '<>z__ReadOnlySingleElementList`1[My.Models.Model]', on 'Dahomey.Cbor.Serialization.Converters.CollectionConverter`2[TC,TI]' violates the constraint of type parameter 'TC'.

You can reproduce by serializing a single element array created via the new Collection expression feature, see:

var array = [42];

I use an array of complex of objects but I suppose it should have the same effect on primitives.
Note that standard arrays like new [] { 42 } still work perfectly.

I did not take a closer look but I suppose it has to do with the underlying (optimized?) type generated by the Collection expression.