Fix repeated allocations of networks with the same func ID

[leokondrashov]

Summary

Repeated requests for the network with the same func ID were creating a leak in the network manager.

Implementation Notes ⚒️

• Check for the allocated networks for the same ID, return it instead of allocating a new one.

External Dependencies 🍀

• N/A

Breaking API Changes ⚠️

• N/A

[JooyoungPark73]

do we need test for this?