When changing the language of the node, the URL is lost.

Thanks @omeya_yang for raising the issue and providing the patch.

I initially replicated the issue you mentioned and it is true that it is not saving the url am not sure if this is suppose to work like this which i am sure is a bug. Attaching screenshot for reference.

I also tested this patch with version you have shared, looks like there is one issue while saving due to undefined method "getLangcode".

Not sure if this is only for me so changing the status to "Needs work" and also attaching the screenshot for your reference.

@abhaypai
Sorry, There was an error in my input, I updated the patch.

Thanks @omeya_yang for working and fixing the issue.

Patch #5 applied and tested manually also attaching image for retention of url. LGTM.

As a bug will need a test case to move the issue forward.