Merge commit '83652ebfe1963bcecdcf24383165904223baca6e' * commit '83652ebfe1963bcecdcf24383165904223baca6e': Implement API to have new broadcasts replace existing broadcasts.
Merge commit '83652ebfe1963bcecdcf24383165904223baca6e' * commit '83652ebfe1963bcecdcf24383165904223baca6e': Implement API to have new broadcasts replace existing broadcasts.