Stellaris - Megacorps can't build branch offices in overlords planets.

[HandicapdHippo]

Description
Megacorps can't build branch offices in overlords planets.

Game Version
2.2.3

What version do you use?

Steam

What expansions do you have installed?
All of the above

Do you have mods enabled?
No

Please explain your issue is in as much detail as possible.
can_build_branch_office_on_planet in 00_rules has the following code

root = {
                is_subject = yes
                is_subject_type = subsidiary
                overlord = { is_same_value = owner }
            }
            owner = {
                is_subject = yes
                is_subject_type = subsidiary
                overlord = { is_same_value = root }
            }

The first block is clearly meant to allow a vassal megacorp to build in its overlord, however it requires the megacorp is a subsidiary, which is the type of vassalage only for regular empires that are vassals of megacorps.
Steps to reproduce the issue.


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