NdElement.reindex now performs checks for clashes
NdElement.reindex now performs checks for clashes

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