Amend Features dialog doesn't list co-located features correctly

Create two features of the same type and extent (start/end), but different descriptions, on a sequence.
Or, fetch the Ensembl example and locate position 22 of the peptide product, which has two variant features.
Double-click on the features to open the Amend Features dialog.
This has a drop-down where you can choose which of the features at the position you wish to modify.
This drop-down shows both features with the same text, both selected. Choosing either actually selects the first.