Demo: fixed multi-selection tree nodes demo to not replace selection when clicking on single-item that's already part of selection (#581)
Demo: fixed multi-selection tree nodes demo to not replace selection when clicking on single-item that's already part of selection (#581)

ocornut/imgui,elect86/imgui,Psybrus/imgui,ggtucker/imgui,tom-seddon/imgui,dougbinks/imgui,tom-seddon/imgui,usagi/imguixx,nProtect/imgui,nProtect/imgui,burningreggae/imgui,thevaber/imgui,thennequin/imgui,wasikuss/imgui,thennequin/imgui,burningreggae/imgui,Flix01/imgui,cmaughan/imgui,Psybrus/imgui,mikesart/imgui,wflohry/imgui-addons,seanmiddleditch/imgui,nProtect/imgui,cmaughan/imgui,bkaradzic/imgui,wasikuss/imgui,elect86/imgui,usagi/imguixx,bkaradzic/imgui,Flix01/imgui,cmaughan/imgui,aimotive/imgui-glfw,aimotive/imgui-glfw,Pagghiu/imgui,ocornut/imgui,cmaughan/imgui,ggtucker/imgui,seanmiddleditch/imgui,Pagghiu/imgui,dougbinks/imgui,ocornut/imgui,mikesart/imgui,Flix01/imgui,ggtucker/imgui,thevaber/imgui,bkaradzic/imgui,wflohry/imgui-addons