Service with update fails to compile if there is more than one entity to update

[fjod]

We must depict which entities to work with and allowed actions in TectureService realization. So I want to update two different entities in one file:

TectureService<Updates<ResourceSupply,Resource>>

Code looks like this:

To<Db>().Update<Resource>().Set(x => x.StockQuantity, 50).ByPk(1);
To<Db>().Update<ResourceSupply>().Set(x => x.Status, ResourceSupplyStatus.Closed).ByPk(2);

I receive compilation error for brackets inUpdate(). Interestingly, that compiler shows me that definition is not needed on the second line.

If I swap classes in TectureServices definition:
TectureService<Updates<Resource,ResourceSupply>>
error goes to To().Update() brackets.

Error:
Sample.cs(17, 13): [CS1929] 'Write<Db, Updates<Resource, ResourceSupply>>' does not contain a definition for 'Update' and the best extension method overload 'Extensions.Update<ResourceSupply>(Write<CommandChannel<Command>, Updates<ResourceSupply>>)' requires a receiver of type 'Write<CommandChannel<Command>, Updates<ResourceSupply>>'