fixed: KETCHER-532 (Rgroup logic does not restored after Delete-Undo and Cut-Paste action)
fixed: KETCHER-532 (Rgroup logic does not restored after Delete-Undo and Cut-Paste action)

ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher,ggasoftware/ketcher