Merge commit '112c980a3d3fd8873dbc44006436aff80535808e' * commit '112c980a3d3fd8873dbc44006436aff80535808e': Implement API to have new broadcasts replace existing broadcasts.
Merge commit '112c980a3d3fd8873dbc44006436aff80535808e' * commit '112c980a3d3fd8873dbc44006436aff80535808e': Implement API to have new broadcasts replace existing broadcasts.