Timeline is not properly displayed in case of split CR

Reproduction steps:

• Create page A and page B and a CR including changes from both page
• Edit rights of pages A and B so that they are incompatible (deny view right to a user in a page and allow it in another page)
• Check the two CRs created from the split

Expected result:

• the created CRs displays a timeline informing about the creation from a split

Obtained result:

• no event is displayed in the timeline