Implementation of relevant nodes for collapse feature, controller + actions as well as unit test
To be audited by Jack.Cai
#jira UEA-564
#rb na
#fyi jack.cai
[CL 14815556 by Helge Mathee in ue5-main branch]
The injected node action was just calling RemoveNode, which outside of undo / redo does not clean up links. We had some stale / transient nodes due to this in the repro case. By adding an additional argument to force recursion into BreakAllLinks etc this is fixed.
#rb lina.halper
#lockdown laurent.delayen
#jira UE-92035
#ROBOMERGE-SOURCE: CL 12923962 in //UE4/Release-4.25/... via CL 12923974 via CL 12923998
#ROBOMERGE-BOT: RELEASE (Release-Engine-Staging -> Main) (v682-12900288)
[CL 12924002 by helge mathee in Main branch]