velocity flag to disable this while we sort it out

Author: zadjii-msft

src/features.xml

@@ -177,4 +177,14 @@
         </alwaysEnabledBrandingTokens>
     </feature>
 
+    <feature>
+        <name>Feature_KepadModeEnabled</name>
+        <description>Enables the DECKPAM, DECKPNM sequences to work as intended </description>
+        <id>16654</id>
+        <stage>AlwaysDisabled</stage>
+        <alwaysEnabledBrandingTokens>
+            <brandingToken>Dev</brandingToken>
+        </alwaysEnabledBrandingTokens>
+    </feature>
+
 </featureStaging>

src/terminal/input/terminalInput.cpp

@@ -441,7 +441,7 @@ try
         // the ASCII character assigned by the keyboard layout, but when set
         // they transmit SS3 escape sequences. When used with a modifier, the
         // modifier is embedded as a parameter value (not standard).
-        if (_inputMode.test(Mode::Keypad))
+        if (_inputMode.test(Mode::Keypad) && Feature_KepadModeEnabled::IsEnabled())
         {
             defineNumericKey(VK_MULTIPLY, L'j');
             defineNumericKey(VK_ADD, L'k');
@@ -493,7 +493,7 @@ try
 
         // Keypad keys also depend on Keypad mode, the same as ANSI mappings,
         // but the sequences use an ESC ? prefix instead of SS3.
-        if (_inputMode.test(Mode::Keypad))
+        if (_inputMode.test(Mode::Keypad) && Feature_KepadModeEnabled::IsEnabled())
         {
             defineKeyWithUnusedModifiers(VK_MULTIPLY, L"\033?j"s);
             defineKeyWithUnusedModifiers(VK_ADD, L"\033?k"s);