Fix disappearing empty groups when moving nested groups into an empty group
Fix disappearing empty groups when moving nested groups into an empty group

Sp1l/pwsafe,Sp1l/pwsafe,Sp1l/pwsafe,Sp1l/pwsafe,Sp1l/pwsafe,Sp1l/pwsafe,Sp1l/pwsafe,Sp1l/pwsafe