i think the bow is bug i got it and arrows but i got to use it from my bag and nothin happen nothin gets hurt and it use the arrow and i fig out the bug with the old shed door relockin and key not workin
You're right, the ranged weapon logic did break at some point. Thanks for reporting it.
Also the shed thing is probably not a bug but simply the fact that you don't actually unlock the shed if Gareth gives you the key to it through other means in RP without selling it to you, it's a purely cosmetic item in 0.8. This will be a feature in 0.9 though.