Memory not being freed?

[timholy]

Reported at JuliaImages/ImageView.jl#138. Here's a copy of the simple test case:

julia> using Reactive

julia> function silly(anns=Signal(Dict{UInt,Any}()); kwargs...)
           return nothing
       end
silly (generic function with 2 methods)

julia> while true
           silly()
       end

Your system monitor will show the memory usage grows rapidly. Be prepared to act quickly to hit Ctrl-C or Ctrl-Z, otherwise you might crash your system.