+ fix focus issue with QuantitySpinBox and InputField

src/Gui/InputField.cpp

@@ -485,6 +485,8 @@ void InputField::focusInEvent(QFocusEvent * event)
         if (!this->hasSelectedText())
             selectNumber();
     }
+
+    QLineEdit::focusInEvent(event);
 }
 
 void InputField::keyPressEvent(QKeyEvent *event)

src/Gui/QuantitySpinBox.cpp

@@ -308,10 +308,13 @@ void QuantitySpinBox::showEvent(QShowEvent * event)
 
 void QuantitySpinBox::focusInEvent(QFocusEvent * event)
 {
+    bool hasSel = lineEdit()->hasSelectedText();
+    QAbstractSpinBox::focusInEvent(event);
+
     if (event->reason() == Qt::TabFocusReason ||
         event->reason() == Qt::BacktabFocusReason  ||
         event->reason() == Qt::ShortcutFocusReason) {
-        if (!lineEdit()->hasSelectedText())
+        if (!hasSel)
             selectNumber();
     }
 }