Fixed outdated hash in TestWidgets
Fixed outdated hash in TestWidgets

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