Listening to Model.subscribed_events to update subscribed_models
Listening to Model.subscribed_events to update subscribed_models

Fixes issue described in #6059

Karel-van-de-Plassche/bokeh,schoolie/bokeh,stonebig/bokeh,percyfal/bokeh,stonebig/bokeh,timsnyder/bokeh,rs2/bokeh,philippjfr/bokeh,percyfal/bokeh,DuCorey/bokeh,schoolie/bokeh,jakirkham/bokeh,percyfal/bokeh,dennisobrien/bokeh,mindriot101/bokeh,rs2/bokeh,timsnyder/bokeh,percyfal/bokeh,jakirkham/bokeh,dennisobrien/bokeh,percyfal/bokeh,bokeh/bokeh,timsnyder/bokeh,timsnyder/bokeh,philippjfr/bokeh,DuCorey/bokeh,jakirkham/bokeh,philippjfr/bokeh,stonebig/bokeh,Karel-van-de-Plassche/bokeh,bokeh/bokeh,bokeh/bokeh,ericmjl/bokeh,Karel-van-de-Plassche/bokeh,dennisobrien/bokeh,bokeh/bokeh,schoolie/bokeh,aavanian/bokeh,mindriot101/bokeh,ericmjl/bokeh,DuCorey/bokeh,ericmjl/bokeh,timsnyder/bokeh,mindriot101/bokeh,DuCorey/bokeh,rs2/bokeh,stonebig/bokeh,ericmjl/bokeh,philippjfr/bokeh,aavanian/bokeh,jakirkham/bokeh,philippjfr/bokeh,aavanian/bokeh,aavanian/bokeh,DuCorey/bokeh,Karel-van-de-Plassche/bokeh,dennisobrien/bokeh,rs2/bokeh,aavanian/bokeh,schoolie/bokeh,Karel-van-de-Plassche/bokeh,jakirkham/bokeh,rs2/bokeh,schoolie/bokeh,mindriot101/bokeh,dennisobrien/bokeh,ericmjl/bokeh,bokeh/bokeh