UNDELETE Event does not have collaborations , is it any way to get it with UNDELETE event ?

Hi All,

I am java developer and using box sdk to retrieve events - using polling by method EventLog.getEnterpriseEvents(apiConnection,EnterpriseEventRequest);

for event - UNDELETE , it gives payload with parent and its owner info along with item info, but I do not getting collaborators that were added into item before delete it. while when I restore it , on Box UI all collaborators are there in item.

Is this right behavior or there is some bug in event payload of UNDELETE event ? 

scenario :

Step1 : create a folder under root(All Files) folder, share this folder with few users(collaborators)  

Step2: Delete created folder and that is shared from Box UI - Right click -> Trash

Step3: On Box UI -> Goto Trash -> Find Trashed Item-> Right click->Restore 

Step4:Once its restored check it on under All Files . folder gets restored and having collaborators that were added before trash/delete. 

Step5:  Retrieve above events using method EventLog.getEnterpriseEvents(apiConnection,EnterpriseEventRequest); by giving params - events start time ,end time and filter- event Types , its does gives below events

UPLOAD,COLLABORATION_INVITE,DELETE,UNDELETE 

but for UNDELETE event it does not have any collaboration info.

Does there any way I can get collaborations info with UNDELETE event ?