Put the summary of the bug you're having here

What I expected to happen was...:
The Left hand to be placing the block in third person

What actually happened was...:
The Right hand placed the block in third person

Steps to Reproduce:
1. Put an item in your left hand (torch for example)
2. ...go into third person and place that block on the ground
3. ...The right hand appears to be placing the torch, instead of the left hand (Note this only happens in third person)