InputText: reworked so that io.ConfigInputTextEnterKeepActive reactivate in order for e.g. IsItemDeactivatedAfterEdit() to work. Amends. (#9001, #9115) Rework. Fixes dangling InputTextReactivateId in case of field being hidden on activation.

diff --git a/imgui.cpp b/imgui.cpp
index b88ff1d..3638f6b 100644
--- a/imgui.cpp
+++ b/imgui.cpp

@@ -4281,7 +4281,7 @@
     MouseStationaryTimer = 0.0f;
 
     InputTextPasswordFontBackupFlags = ImFontFlags_None;
-    InputTextReactivateID = 0;
+    InputTextReactivateId = 0;
     TempInputId = 0;
     memset(&DataTypeZeroValue, 0, sizeof(DataTypeZeroValue));
     BeginMenuDepth = BeginComboDepth = 0;
@@ -5573,6 +5573,8 @@
     g.ActiveIdIsJustActivated = false;
     if (g.TempInputId != 0 && g.ActiveId != g.TempInputId)
         g.TempInputId = 0;
+    if (g.InputTextReactivateId != 0 && g.InputTextReactivateId != g.DeactivatedItemData.ID)
+        g.InputTextReactivateId = 0;
     if (g.ActiveId == 0)
     {
         g.ActiveIdUsingNavDirMask = 0x00;

diff --git a/imgui.h b/imgui.h
index eca23ac..cc82c5f 100644
--- a/imgui.h
+++ b/imgui.h

@@ -2428,7 +2428,7 @@
     bool        ConfigMacOSXBehaviors;          // = defined(__APPLE__) // Swap Cmd<>Ctrl keys + OS X style text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl.
     bool        ConfigInputTrickleEventQueue;   // = true           // Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.
     bool        ConfigInputTextCursorBlink;     // = true           // Enable blinking cursor (optional as some users consider it to be distracting).
-    bool        ConfigInputTextEnterKeepActive; // = false          // [BETA] Pressing Enter will keep item active and select contents (single-line only).
+    bool        ConfigInputTextEnterKeepActive; // = false          // [BETA] Pressing Enter will reactivate item and select all text (single-line only).
     bool        ConfigDragClickToInputText;     // = false          // [BETA] Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving). Not desirable on devices without a keyboard.
     bool        ConfigWindowsResizeFromEdges;   // = true           // Enable resizing of windows from their edges and from the lower-left corner. This requires ImGuiBackendFlags_HasMouseCursors for better mouse cursor feedback. (This used to be a per-window ImGuiWindowFlags_ResizeFromAnySide flag)
     bool        ConfigWindowsMoveFromTitleBarOnly;  // = false      // Enable allowing to move windows only when clicking on their title bar. Does not apply to windows without a title bar.

diff --git a/imgui_demo.cpp b/imgui_demo.cpp
index da8a78f..d7dc0b0 100644
--- a/imgui_demo.cpp
+++ b/imgui_demo.cpp

@@ -526,7 +526,7 @@
             ImGui::Checkbox("io.ConfigInputTextCursorBlink", &io.ConfigInputTextCursorBlink);
             ImGui::SameLine(); HelpMarker("Enable blinking cursor (optional as some users consider it to be distracting).");
             ImGui::Checkbox("io.ConfigInputTextEnterKeepActive", &io.ConfigInputTextEnterKeepActive);
-            ImGui::SameLine(); HelpMarker("Pressing Enter will keep item active and select contents (single-line only).");
+            ImGui::SameLine(); HelpMarker("Pressing Enter will reactivate item and select all text (single-line only).");
             ImGui::Checkbox("io.ConfigDragClickToInputText", &io.ConfigDragClickToInputText);
             ImGui::SameLine(); HelpMarker("Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving).");
             ImGui::Checkbox("io.ConfigMacOSXBehaviors", &io.ConfigMacOSXBehaviors);

diff --git a/imgui_internal.h b/imgui_internal.h
index 3cfac42..c540407 100644
--- a/imgui_internal.h
+++ b/imgui_internal.h

@@ -2461,7 +2461,7 @@
     ImGuiInputTextDeactivatedState InputTextDeactivatedState;
     ImFontBaked             InputTextPasswordFontBackupBaked;
     ImFontFlags             InputTextPasswordFontBackupFlags;
-    ImGuiID                 InputTextReactivateID;              // ID of InputText to reactivate on next frame (for ConfigInputTextEnterKeepActive behavior)
+    ImGuiID                 InputTextReactivateId;              // ID of InputText to reactivate on next frame (for io.ConfigInputTextEnterKeepActive behavior)
     ImGuiID                 TempInputId;                        // Temporary text input when using Ctrl+Click on a slider, etc.
     ImGuiDataTypeStorage    DataTypeZeroValue;                  // 0 for all data types
     int                     BeginMenuDepth;

diff --git a/imgui_widgets.cpp b/imgui_widgets.cpp
index 355b63a..78fae52 100644
--- a/imgui_widgets.cpp
+++ b/imgui_widgets.cpp

@@ -4761,12 +4761,7 @@
         wrap_width = ImMax(1.0f, GetContentRegionAvail().x + (draw_window->ScrollbarY ? 0.0f : -g.Style.ScrollbarSize));
 
     const bool input_requested_by_nav = (g.ActiveId != id) && ((g.NavActivateId == id) && ((g.NavActivateFlags & ImGuiActivateFlags_PreferInput) || (g.NavInputSource == ImGuiInputSource_Keyboard)));
-
-    // Check if this InputText should be reactivated (for ConfigInputTextEnterKeepActive)
-    const bool input_requested_by_reactivate = (g.InputTextReactivateID == id);
-    if (input_requested_by_reactivate)
-        g.InputTextReactivateID = 0; // Clear the flag
-
+    const bool input_requested_by_reactivate = (g.InputTextReactivateId == id); // for io.ConfigInputTextEnterKeepActive
     const bool user_clicked = hovered && io.MouseClicked[0];
     const bool user_scroll_finish = is_multiline && state != NULL && g.ActiveId == 0 && g.ActiveIdPreviousFrame == GetWindowScrollbarID(draw_window, ImGuiAxis_Y);
     const bool user_scroll_active = is_multiline && state != NULL && g.ActiveId == GetWindowScrollbarID(draw_window, ImGuiAxis_Y);
@@ -5114,16 +5109,13 @@
             bool is_new_line = is_multiline && !is_gamepad_validate && (is_shift_enter || (is_enter && !ctrl_enter_for_new_line) || (is_ctrl_enter && ctrl_enter_for_new_line));
             if (!is_new_line)
             {
-                validated = true;
+                validated = clear_active_id = true;
                 if (io.ConfigInputTextEnterKeepActive && !is_multiline)
                 {
-                    // Deactivate for one frame to trigger IsItemDeactivatedAfterEdit(), then reactivate
+                    // Queue reactivation, so that e.g. IsItemDeactivatedAfterEdit() will work. (#9001)
                     state->SelectAll(); // No need to scroll
-                    clear_active_id = true;
-                    g.InputTextReactivateID = id; // Mark for reactivation on next frame
+                    g.InputTextReactivateId = id; // Mark for reactivation on next frame
                 }
-                else
-                    clear_active_id = true;
             }
             else if (!is_readonly)
             {