Convert container to container block

[rgv-4292]

I am trying to write an API to convert a container to a container block, but the function appears to be incomplete. When I run the code (following), it appears successful with the elements of the container becoming immutable, but the container is not a block instance and doesn't allow unlocking or undoing the operation. Is this a known issue or am I approaching this incorrectly?

`
import cadwork
import element_controller as ec
import geometry_controller as gc
import attribute_controller as ac
import utility_controller as uc

element_ids = ec.get_active_identifiable_element_ids()

ec.add_modified_elements_to_undo(element_ids)
container = ec.create_auto_container_from_standard(element_ids, 'Cont_', "Auto_Container")
container_elements = ec.get_container_content_elements(container)
ac.set_name([container], 'Container_' + str(container))

ref_length = gc.get_length(container)
ref_width = gc.get_width(container)
ref_height = gc.get_height(container)

ref_length = ref_length - 20
ref_width = ref_width - 20
ref_height = ref_height - 20

gc.set_length_real([container], ref_length)
gc.set_width_real([container], ref_width)
gc.set_height_real([container], ref_height)

ec.add_created_elements_to_undo([container])
container_name = ac.get_name(container)
block_container = ec.convert_container_to_container_block([container])
##ec.add_created_elements_to_undo([block_container])
uc.print_message("Container created: " + container_name, 0, 0)
`

[Brunner246]

fixed from build >= 32.0.498

[rgv-4292]

Thank you!