Fixed minor bug in widget hierarchical call
Fixed minor bug in widget hierarchical call

ioam/holoviews,vascotenner/holoviews,basnijholt/holoviews,ioam/holoviews,ioam/holoviews,basnijholt/holoviews,vascotenner/holoviews,basnijholt/holoviews,vascotenner/holoviews