List the requirement that immediate subcomponent names must be unique. Also describe the previous (silent) bug that has been fixed by enforcing this requirement.
List the requirement that immediate subcomponent names must be unique. Also describe the previous (silent) bug that has been fixed by enforcing this requirement.

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core