FIx issue with fully empty first turret

If the first turet is fully empty (on mortars), then the magazines
appear under TurretMagazines2, and when it's restored, the mortar
is fully re-stocked.
Merge branch 'Development_main' into extDB_beta
Merge branch 'extDB_beta' of https://github.com/micovery/ArmA3_Wasteland.Altis into extDB_beta