I had this happen as well trying to take my old pants off to put new pants on. I dragged my old pants to vacinity and they disappeared with my loot in side

If I had a gun and came across a gun just like the one I had I would remove anything that might be useful like the magazine and any ammo accessories etc the gun might have and move on down the road. Maybe some guns should have magazine when spawned in but not all of them.

I strongly agree with you.