Key legal question
Whether the federal support scheme ended and cantonal support jurisdiction began after the return to Switzerland.
Extracted holding
The mother's return to Switzerland with intent to remain permanently ended federal support under the ASFG and placed the case under the ZUG, subject to cantonal support jurisdiction.
Extracted reasoning
The circumstances indicated a genuine return and permanent stay in Switzerland; thus the foreign-Swiss status was lost and support from that point was governed by the ZUG, while the Confederation remained liable only for the statutory transition period.