Fix Tab non-responding after dragging bug

Short problem description:
Drag/drop a tab with the mouse to another position,
then all other tabs can't be activated with clicking anymore.

Also a missing include was added, that prevented compilation

Fix #4885, close #4886

PowerEditor/src/MISC/Common/Common.cpp

@@ -31,6 +31,7 @@
 #include <uxtheme.h>
 #include <cassert>
 #include <codecvt>
+#include <locale>
 
 #include "StaticDialog.h"
 

PowerEditor/src/WinControls/TabBar/TabBar.cpp

@@ -669,6 +669,7 @@ LRESULT TabBarPlus::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lPara
 			if (_isDragging)
 			{
                 exchangeItemData(p);
+				::CallWindowProc(_tabBarDefaultProc, hwnd, WM_LBUTTONDOWN, wParam, lParam);
 
 				// Get cursor position of "Screen"
 				// For using the function "WindowFromPoint" afterward!!!
@@ -1187,9 +1188,6 @@ void TabBarPlus::exchangeTabItemData(int oldTab, int newTab)
 
 	// Tell Notepad_plus to notifiy plugins that a D&D operation was done (so doc index has been changed)
 	::SendMessage(_hParent, NPPM_INTERNAL_DOCORDERCHANGED, 0, oldTab);
-
-	//2. set to focus
-	setActiveTab(newTab);
 }
 
 void TabBarPlus::exchangeItemData(POINT point)