Chaincode should be able to emit an event when it's invoked by other chaincode

The current behaviour regarding chaincode events is as follows:

"Only the chaincode invoked by the client can emit events"

So that means it's not possible to implement a proxy chaincode that invokes another chaincode (child chaincode) because all the events related to this last one will be lost.

This doesn't make sense and becomes a limitation. Events should be thrown in a basic delegate call implementation.