Manual reinstall of addon packages after upgrade

[rmaeder]

when the pfSense unit is not connected to the Internet right after an upgrade and restoring the config file, it cannot re-install the addon packages that were present before the upgrade. Later, when it is connected, it no longer tries to reinstall them, and I have to manually select all my addons. The configs are still there, so this is no big deal.
Is there a shell command to cause it to reinstall those addons that are missing, but listed in the config?
Roman

[KOM]

pkg upgrade -f might do it. I think I remember there being a specific pfsense shell command for that but I don't remember what it was, or for sure if it even exists.

[rmaeder]

@KOM
but this reinstalls all installed packages, doesn't it?
I only need the missing ones.