Sort "Member of" list naturally

[pbb]

The membership list inside the "Tags/Memberships" window is sorted alphabetically. When these memberships are transport routes, this sorting is very unnatural.

For example, the memberships list for a bus stop could contain routes in this order:

• Route 100
• Route 3
• Route 45
• Route 9

In contrast, routes inside the "Relations" window are sorted naturally! The relations window sorts them like this:

• Route 3
• Route 9
• Route 45
• Route 100

Could the memberships list also be sorted naturally?

[skyper]

duplicate of #9688 ?

[pbb]

Replying to skyper:

duplicate of #9688 ?

No, not a duplicate of #9688. That one reports the relations window being unsorted, while that one is actually sorted nicely for me. My problem is with the memberships part of the tags/memberships window. That is, it's in another window.

[pbb]

This bug is not a duplicate of, but related to #9668

[simon04]

In 7113/josm:

fix #9872 - Sort "Member of" list naturally