Option to allow conflating of node with (multiple) parent way

[skyper]

See #20800 for one example and the source for this ticket.

In some cases like routing networks it is useful to keep the connections of ways.

What steps will reproduce the problem?

1. In one layer, select a highway and one child node as references
2. In another layer, select a highway and one child node shared with another highway as subject
3. Generate two matches
4. Conflate the nodes

What is the expected result?

Conflation works like without parent ways

What happens instead?

Conflation is denied with a dialog, that replacement of nodes with parents is not supported.

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

Please, add an option to allow replacements of nodes with parent ways.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2021-04-30 21:52:45 +0200 (Fri, 30 Apr 2021)
Revision:17837
Build-Date:2021-05-01 01:31:01
URL:https://josm.openstreetmap.de/svn/trunk

Plugins:
+ conflation (0.6.6)
+ utilsplugin2 (35691)