[1.3.3076b] Public execution "No Prisoner"

[Anarcraft]

Ideology and Royalty.
OS: Arch Linux

Faction Ideology precept: Honorable execution if guilty

I build a 2x2 prison room, put a bedroll or a bed and capture a prisoner (tried with enemy and one of my own colonists).  When I try to initiate the "Public Execution" ritual it says I don't have a prisoner even though I do have one.  This happens with all prisoners, regardless of their "Guilty" status.

Moderator Note:
I am unable to reproduce this in 1.3.3108.  Thanks for the report. IF you find you still have this issue, please post a new report, with a save attached!