Tabs: made scrolling buttons never keyboard/gamepad navigation candidates.

docs/CHANGELOG.txt

@@ -70,6 +70,7 @@ Other Changes:
   any potential shrinking is applied.
 - Tabs: fixed tab bar underline not drawing below scroll buttons, when
   they are enabled (minor regression from 1.90). (#6820, #4859, #5022, #5239)
+- Tabs: made scrolling buttons never keyboard/gamepad navigation candidates.
 - Nav: fixed a bug where GamepadMenu button couldn't toggle between main and
   menu layers while navigating a Modal window. (#8834)
 - Error Handling: minor improvements to error handling for TableGetSortSpecs()

imgui_widgets.cpp

@@ -10046,7 +10046,7 @@ static ImGuiTabItem* ImGui::TabBarScrollingButtons(ImGuiTabBar* tab_bar)
 
     PushStyleColor(ImGuiCol_Text, arrow_col);
     PushStyleColor(ImGuiCol_Button, ImVec4(0, 0, 0, 0));
-    PushItemFlag(ImGuiItemFlags_ButtonRepeat, true);
+    PushItemFlag(ImGuiItemFlags_ButtonRepeat | ImGuiItemFlags_NoNav, true);
     const float backup_repeat_delay = g.IO.KeyRepeatDelay;
     const float backup_repeat_rate = g.IO.KeyRepeatRate;
     g.IO.KeyRepeatDelay = 0.250f;