fix scroll event location defaults to first textNodeDepth if above text
fix scroll event location defaults to first textNodeDepth if above text

pletcher/cltk_frontend,pletcher/cltk_frontend,pletcher/cltk_frontend,cltk/cltk_frontend,cltk/cltk_frontend,pletcher/cltk_frontend,pletcher/cltk_frontend