ItemNotFound in Push Master Changes

Unfortunately I'm unable to reproduce the problem. However, I can reproduce the same issue on getReferencedLiveCopyNodeById.

Steps to reproduce:

1. Create live-copy for travel web.
2. On the copy site, edit about (/travel0/about)
3. Create a variant for the jumbotron
4. Now from the pages tree, select the /travel/about and click on Push Master changes**
5. It will appear the following logs:

2020-08-05 13:05:18,038 INFO  vecopy.actions.PropagateMasterContentChangesHelper: Checking if childNodes for: /travel0/about should be deleted
2020-08-05 13:05:18,088 ERROR vecopy.actions.PropagateMasterContentChangesHelper: Error changing node order /travel0/about/main/04 prev node: /travel0/about/main/00/variants/variant-0 

The problem is getReferencedLiveCopyNodeById selects /travel0/about/main/00/variants/variant-0 instead of /travel0/about/main/00. This issue caused a ItemNotFoundException under some circumstances.  

AC:

• No ERROR log appears.