Minecraft Username: cdlawrence

Brief Description: By clicking a lift sign while holding armor it appears to duplicated

Instructions:
1. Hold armor in your hand
2. Click a lift sign
3. Armor will disappear and appear that you are wearing it
4. Click a chest, e table, or wb
5. Armor still appears on body but also appears in inventory
6. Clicking on armor on body makes it disappear

How many times did you recreate this bug?:
3 times, repeating instructions seems to always give same result

Result:
armor appears to duplicate but then duplicate disappears

Expected Result:
Armor remains in hand instead of acting like it is being worn when using lift sign

Evidence:
Just that I did it, I did not do any screen shots but it is easy to replicate situation