AppVM's settings dialog raises AttributeError when there is no ProxyVM

[nhlfr]

The "default NetVM" is usually the first created ProxyVM which is set by qubes-core during its creation.
https://github.com/QubesOS/qubes-core-admin/blob/master/core/qubes.py#L355

If there is no ProxyVM, there is no "default NetVM". Therefore, creating an AppVM and launching its settings dialog raised AttributeError, because get_default_netvm method returned None. The exception is raised here:
https://github.com/QubesOS/qubes-manager/blob/master/qubesmanager/settings.py#L263

This can be reproduced by installing QubesOS without creating VMs by installer.

[marmarek]

Automated announcement from builder-github

The package qubes-manager-2.0.41-1 has been pushed to the r2 stable repository for dom0.
To install this update, please use the standard update command:

sudo qubes-dom0-update

Or update dom0 via Qubes Manager.

[marmarek]

Automated announcement from builder-github

The package qubes-manager-2.0.41-1 has been pushed to the r2 stable repository for dom0.
To install this update, please use the standard update command:

sudo qubes-dom0-update

Or update dom0 via Qubes Manager.