🐛 Bug report | Shells no longer rendered as solids after model refreshed

[stevenlabelle]

Description:
Shells no longer rendered as solids after model reloaded. The option in the properties panel still displays "yes" but solid rendering can only be restored by toggling the option twice. The rendering should remain unchanged by reloading the model.

Version:
Dev Version 3.1.0.5a35963b6

Steps To Reproduce:

1. Open a model with shells on the post side (e.g., a model currently running that you are monitoring.)
2. In the model tree set "View>Render shells as solid" to "Yes".
3. Click "Reload". The solid rendering is gone but the model tree value is "Yes".
4. Toggle the button in the model tree twice to get "Yes" again and the solid rendering will return.