renaming columns is broken

[alexcjohnson]

try to rename a column in the "Adding or removing columns" section of https://dash.plot.ly/datatable/editable - you can type in a new name but a JS error prevents it from taking effect. Oddly that example still generates the rename control even though it's using the old prop name column.editable_name instead of the new one column.renamable... I don't understand that, it doesn't work that way for me locally. But locally the same error happens and prevents a rename using the new prop name.

[alexcjohnson]

Multi-row header renaming worked fine, it's just single-row headers that were broken.