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