PR fixes - better _update_model_from_json implementation
PR fixes - better _update_model_from_json implementation

macarthur-lab/xbrowse,ssadedin/seqr,macarthur-lab/seqr,macarthur-lab/xbrowse,ssadedin/seqr,ssadedin/seqr,macarthur-lab/seqr,ssadedin/seqr,macarthur-lab/seqr,macarthur-lab/xbrowse,ssadedin/seqr,macarthur-lab/xbrowse,macarthur-lab/seqr,macarthur-lab/seqr,macarthur-lab/xbrowse,macarthur-lab/xbrowse