Unequip the weapon only after finishing the attack (bug #4610)

CHANGELOG.md

@@ -3,6 +3,7 @@
 
     Bug #4127: Weapon animation looks choppy
     Bug #4204: Dead slaughterfish doesn't float to water surface after loading saved game
+    Bug #4610: Casting a Bound Weapon spell cancels the casting animation by equipping the weapon prematurely
     Bug #4816: GetWeaponDrawn returns 1 before weapon is attached
     Bug #5057: Weapon swing sound plays at same pitch whether it hits or misses
     Bug #5129: Stuttering animation on Centurion Archer

apps/openmw/mwmechanics/character.cpp

@@ -1321,7 +1321,8 @@ namespace MWMechanics
         {
             std::string weapgroup;
             if ((!isWerewolf || mWeaponType != ESM::Weapon::Spell) && weaptype != mWeaponType
-                && mUpperBodyState != UpperBodyState::Unequipping && !isStillWeapon)
+                && mUpperBodyState <= UpperBodyState::AttackWindUp && mUpperBodyState != UpperBodyState::Unequipping
+                && !isStillWeapon)
             {
                 // We can not play un-equip animation if weapon changed since last update
                 if (!weaponChanged)
@@ -1363,7 +1364,7 @@ namespace MWMechanics
             {
                 // Weapon is changed, no current animation (e.g. unequipping or attack).
                 // Start equipping animation now.
-                if (weaptype != mWeaponType)
+                if (weaptype != mWeaponType && mUpperBodyState <= UpperBodyState::WeaponEquipped)
                 {
                     forcestateupdate = true;
                     bool useShieldAnims = mAnimation->useShieldAnimations();