Unticking Character Specific Key Bindings, or pressing Defaults, raised `StaticPopup.lua:1713: attempt to compare number with nil` every frame the confirm stayed up.
1.12.1: `StaticPopup_Show` copies an entry's `timeout` into `dialog.timeleft`, and `StaticPopup_OnUpdate` compares it with 0 each frame; every stock entry declares one, the stock key-binding confirm included (`Blizzard_BindingUI.lua:10-24`, `timeout = 0`, `whileDead = 1`, `showAlert = 1`).
Our key-bindings page's two confirms declared none. Both now do, the character-set one with the stock entry's three fields. The checkbox test now runs a frame with the confirm up, and a new test fails on any dialog the loaded interface defines without a numeric timeout; both fail without the fix.
Fixes#1971🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
(cherry picked from commit 881152bda6d48cc3fd1a47679a7465add212ae05)
Sam Sung
8f658cb516