* SetPackageThatInitiatedCopy() is now called before any customization steps to fix issue with inconsistent values in PackageThatInitiatedCopy. Notably that PackageThatInitiatedCopy could be the name of the previous package initiator during some method calls if the same advanced copy customization was re-used during the editor lifetime
* Made UAdvancedCopyCustomization::GetARFilter() virtual so customization have an opportunity to define additional filtering
#rb Lauren.Barnes
#ROBOMERGE-AUTHOR: jay.nakai
#ROBOMERGE-SOURCE: CL 21293857 via CL 21293920 via CL 21293937
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v972-20964824)
[CL 21297704 by jay nakai in ue5-main branch]
#rnx
#rb none
#ROBOMERGE-SOURCE: CL 10869240 via CL 10869516 via CL 10869902
#ROBOMERGE-BOT: (v613-10869866)
[CL 10870584 by ryan durand in Main branch]