Core/Spells: Fixed spell effect value calculation

src/server/game/Spells/SpellInfo.cpp

@@ -568,6 +568,8 @@ int32 SpellEffectInfo::CalcValue(Unit const* caster /*= nullptr*/, int32 const*
                 level = 0;
             value += level * basePointsPerLevel;
         }
+
+        basePoints = int32(round(value));
     }
 
     float value = float(basePoints);