Number of troops killed will be the new lady/lord

[tos1]

When the player as a independent faction sieged and took a castle, one of companions says like below though I selected "I want to have xxxx for myself":
"As you wish, my lady. Number of troops killed will be the new lady of The Rills." .
(In this example, the player character I used is female and the castle is The Rills but the problem does not depend on gender or place.)

I guess the corresponding lines are:
----
strings.txt:str_sire_my_lady_we_have_taken_s1_s2
{reg59?My lady:Sire}, we have taken {s1}. {s2}
----
str_who_do_you_wish_to_give_it_to
Who do you wish to give it to?
----
str_s12i_want_to_have_s1_for_myself
{s12}I want to have {s1} for myself. {s2}
----
dlga_award_fief_to_vassal_2:close_window.1
As you wish, {reg59?my lady:my lord}. {reg6?I:{reg7?You:{s11}}} will be the new {reg3?lady:lord} of {s1}.
----

The word to be displayed must be "You" in this case. The reg7 seems to be 0 mistakenly.

- How to reproduce it/when/why it happens:
Don't become any vassal and play as an independent faction. Take aim at a poorly defended castle, siege and take it. After you chose people and things you got, one of companions asks you:
"My xxxx, we have taken yyyy. Who do you wish to give it to?"
Select "I want to have yyyy for myself." from choices.
The companion says:
"As you wish, my xxxx. Number of troops killed will be the new xxxx of yyyy."

- Game version (and steam or downloaded):
AWoIaF v8.2, Warband v1.174 downloaded
(Note: v8.1 + WB v1.167 has the same problem)

(Edited on Feb 5 2023 UTC: corrected WB versions)