Error when editing a cell in a client-side filtered column

[maximlt]

I just found out that an error is raised now when trying to update a cell in a column that is filtered by a header filter. This is because Tabulator implements _process_data to apply the header filters to data. This was done to fix some other bug, except that in this case after being filtered data can no longer be compared as it's one row smaller than the old data, as the row with the edited value is filtered out...

panel/panel/widgets/tables.py

Lines 1209 to 1230 in e43b8c5

	def _process_data(self, data):
	# Extending _process_data to cover the case when header filters are
	# active and a cell is edited. In that case the data received from the
	# front-end is the full table, not just the filtered one. However the
	# _processed data is already filtered, this made the comparison between
	# the new data and old data wrong. This extension replicates the
	# front-end filtering - if need be - to be able to correctly make the
	# comparison and update the data hold by the backend.
	if not self.filters:
	return super()._process_data(data)
	import pandas as pd
	df = pd.DataFrame(data)
	filters = self._get_header_filters(df)
	if filters:
	mask = filters[0]
	for f in filters:
	mask &= f
	df = df[mask]
	data = {
	col: df[col].values for col in df.columns
	}
	return super()._process_data(data)