Tags/Memberships toggle dialog: enable opening several relation editor dialog simultaneously

[skyper]

What steps will reproduce the problem?

1. have an object with membership of several relations
2. select more than one relation in Tags/Memberships toggle dialog under "Member of"

What is the expected result?

The "Edit" button is active to open several relation editor dialogs simultaneously

What happens instead?

The button is disabled once more than one relation is selected

Please provide any additional information below. Attach a screenshot if possible.

It is the same with context menu.
In the relation list toggle dialog it is possible to open several relation editors at once with the button and through context menu with a nice warning if many relations are selected.
Same is possible with selection list toggle dialog context menu.

Thanks.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-01-20 23:45:26 +0100 (Mon, 20 Jan 2020)
Revision:15743
Build-Date:2020-01-21 02:30:56
URL:https://josm.openstreetmap.de/svn/trunk

[skyper]

Ticket #22710 has been marked as a duplicate of this ticket.