Perhaps the Spanish version seems to be mistakenly using a line of other old MOD's dialogs.csv. The ID of the line is:
dlga_town_dweller_talk:town_dweller_quest_meet_spy_in_enemy_town
English:
Should you need milk of the poppy, I can give you pilk of the moppy!
Spanish:
{s4}
I found this difference by chance when I was comparing them.
Sorry if it is intended.
- Game version (and steam or downloaded):
AWoIaF v8.1, Warband v1.167 downloaded