Nav: fixing assert using Tab in a window without any tabbable element (#4449)

Amend 1a7526dc

imgui.cpp

@@ -9685,11 +9685,8 @@ void ImGui::NavMoveRequestApplyResult()
 
     // Tabbing forward wrap
     if (g.NavMoveFlags & ImGuiNavMoveFlags_Tabbing)
-        if (g.NavTabbingCounter == 1 || g.NavTabbingDir == 0)
-        {
-            IM_ASSERT(g.NavTabbingResultFirst.ID != 0);
+        if ((g.NavTabbingCounter == 1 || g.NavTabbingDir == 0) && g.NavTabbingResultFirst.ID)
             result = &g.NavTabbingResultFirst;
-        }
 
     // In a situation when there is no results but NavId != 0, re-enable the Navigation highlight (because g.NavId is not considered as a possible result)
     if (result == NULL)

imgui.h

@@ -64,7 +64,7 @@ Index of this file:
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
 #define IMGUI_VERSION               "1.86 WIP"
-#define IMGUI_VERSION_NUM           18509
+#define IMGUI_VERSION_NUM           18510
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 #define IMGUI_HAS_TABLE
 
@@ -2209,7 +2209,7 @@ struct ImGuiListClipper
 
     // Call ForceDisplayRangeByIndices() before first call to Step() if you need a range of items to be displayed regardless of visibility.
     IMGUI_API void  ForceDisplayRangeByIndices(int item_min, int item_max); // item_max is exclusive e.g. use (42, 42+1) to make item 42 always visible BUT due to alignment/padding of certain items it is likely that an extra item may be included on either end of the display range.
-    
+
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
     inline ImGuiListClipper(int items_count, float items_height = -1.0f) { memset(this, 0, sizeof(*this)); ItemsCount = -1; Begin(items_count, items_height); } // [removed in 1.79]
 #endif