Relation editor: Select previous/next gap: Ignore adjacent incomplete members

[skyper]

What steps will reproduce the problem?

1. Have a relation with only some members downloaded
2. In relation manager: Select first way in member list
3. Select next gap
4. Select next gap

What is the expected result?

Adjacent block of incomplete members are ignored.

What happens instead?

Every incomplete member counts as gap.

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

Only found #8802.
As there is no information available for incomplete members select next/previous gap is mostly useless with only some members downloaded but it would be useful if only the change from incomplete to complete members (or the opposite) and real gaps within downloaded members' blocks would be selected.

Additionally, adjacent members with roles like stop, platform and guidepost could be ignored.
Thanks a lot

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2021-06-02 23:14:11 +0200 (Wed, 02 Jun 2021)
Revision:17921
Build-Date:2021-06-03 01:31:07
URL:https://josm.openstreetmap.de/svn/trunk