`InitialSyncComplete` edge case

[Lordfirespeed]

For a client that has a CSync-dependent mod that the host does not have, InitialSyncComplete will never be invoked.

This may actually be a symptom of a bigger problem: network variables are associated across the network by 'network behaviour ID' which is dependent on order of components in hierarchy. Therefore, whenever the installed CSync-dependent mods differ between client and server, the IDs may mismatch and values will not be synced correctly.