Entering Magic menu crashes the game

[maciej-trebacz]

When I go into the Magic menu (also same goes for Equip menu) I get the following exception:

battle-stats.js:815 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'attackStrength')
    at getBattleStatsForChar (battle-stats.js:815:40)
    at setDataFromPartyMember (menu-main-magic.js:45:22)
    at loadMagicMenu (menu-main-magic.js:60:3)

I get that menus are not fully implemented yet, but I remember the ones that weren't implemented just showed a placeholder, so I figured I'd report the regression :).