A topic from AEG's L5R CCG Rules forum, copied for Oracle of the Void from a copy of the forum saved in October 2015, so pages it didn't save are missing. Players' names are left out; the rules officials are named. Rulings are as they stood on these dates; later rulings, the rulebooks and the Rules Archive may differ.
A player, 14 August 2007
viewtopic.php?f=59&t=60427
Bushido Virtue Battle/Open: Bow one of your target honorable Samurai Personalities: Straighten another target Personality and give him +3F if he is opposed.
Wouldn't the word "another" preclude both target samurai being the same samurai?
Zen Faulkes (rules official), 14 August 2007
Wouldn't the word "another" preclude both target samurai being the same samurai?
Nothing in the original question asked that, as far as I can see. It asked if it could be played on an unbowed Personality, which need not be the one mentioned in the cost.