Describe the bug
The calculation of mass and power is wrong is subequipments are used.

To Reproduce
Steps to reproduce the behavior:

1. Model a system with subequipments and also add mass and powerparameters to the main equipment
2. Set power and mass for the main equipment to 0
3. Check the mass and power parameters on sub- and systemlevel

Expected behavior
It should be possible to also model subequipments to group equipments

Screenshots
Check the teamserver for a demo model. Message me for further information for the access.

Desktop (please complete the following information):

• OS: Windows 10
• Version 22H2