When you have a link such as
[[People%27s_Park_(Berkeley)#May_15.2C_1969:_.22Bloody_Thursday.22|Bloody Thursday]]
AWB currently fixes them to
[[People's Park (Berkeley)#May 15.2C 1969: .22Bloody Thursday.22|Bloody Thursday]]
Basically, it leaves everything after # untouched.
AWB should fix the whole link, and pipe this to
[[People's Park (Berkeley)#May 15, 1969: "Bloody Thursday"|Bloody Thursday]]
instead.