Improved the HoloMap collapse method
Improved the HoloMap collapse method

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