Thera routing works only after direct connection is added to map

[tomaswest]

In v.2.2.4 routing through Thera works only if at least one Thera connection is added to map.
Steps to reproduce:

1. Create a new map
2. Add Thera
3. Add any route to k-space system.

It will not show any routes, until you manualy add k-space system with Thera connection to map. It will show only route through this system, and does not aknowledge other connections from Thera, which are not on the map.
This is not how it used to work before eve-scout api update.