po/vi.po header says: "Project-Id-Version: xfce4-appfinder\n" "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" So maybe something is wrong.
Skunnyk referenced this bugreport in commit ab0b2eee1c2c1075e5ceb0505d7fc8a2a35b0cdb Bug #15546 https://gitlab.xfce.org/apps/xfce4-mixer/commit/ab0b2eee1c2c1075e5ceb0505d7fc8a2a35b0cdb