[LocationCompleter] Hide completion popup after Alt+Enter.

Hides completion popup after opening new tab with Alt+Enter shortcut.

src/lib/app/qz_namespace.h

@@ -18,6 +18,8 @@
 #ifndef QZ_NAMESPACE_H
 #define QZ_NAMESPACE_H
 
+#include <QFlags>
+
 #ifdef QUPZILLA_SHAREDLIBRARY
 #define QT_QUPZILLA_EXPORT Q_DECL_EXPORT
 #else
@@ -32,8 +34,6 @@
 #define Q_LIKELY(x) x
 #endif
 
-#include <QFlags>
-
 namespace Qz
 {
 // Version of session.dat file

src/lib/navigation/locationbar.cpp

@@ -473,6 +473,7 @@ void LocationBar::keyPressEvent(QKeyEvent* event)
             break;
 
         case Qt::AltModifier:
+            m_completer.closePopup();
             p_QupZilla->tabWidget()->addView(createUrl());
             m_holdingAlt = false;
             break;