🐛 Bug report | Cannot hide newly created named selections on post side.

[stevenlabelle]

Description:
If new named selections are created on the post side they cannot be hidden through the model tree.

Version:
Dev Version 3.0.0.23e43365b

Steps To Reproduce:

1. Open up a model on the post side.
2. Select a few elements (note, shells used for testing).
3. Create a new named selection (Edit>Name Selection...).
4. Navigate to the new selection in the model tree (Mesh>Element Sets>...)
5. Right-click and then select "Hide Elements". Nothing changes.