Why are two using clauses resolving to the same type seen as ambigious in gcc

Before looking at alias resulting type, (and accessibility)

we look at names

and indeed,

NetworkPacket might be

• MultiCmdQueueCallback::NetworkPacket
• or PlcMsgFactoryImplCallback::NetworkPacket

The fact they both point to Networking::NetworkPacket is irrelevant.

We do first name resolution, which results in ambiguity.