Split Object: Overlapping closed ways created

[skyper]

What steps will reproduce the problem?

1. Have a closed way
2. Draw a new way between two nodes of the closed way completely outside of area, example file​
3. Select the new unclosed way
4. Split Object

What is the expected result?

Either the split is denied or better add the outer part as a new closed way connected to the other closed way

What happens instead?

A new closed way is created as expected but additional the new part is added to the original closed way, too, resulting in overlapping areas.

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

See #21154 for another problem with invalid result.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2021-07-21 20:57:29 +0200 (Wed, 21 Jul 2021)
Revision:18079
Build-Date:2021-07-22 01:31:13
URL:https://josm.openstreetmap.de/svn/trunk

Plugins:
+ utilsplugin2 (35792)

[skyper]

example file