Gui: [skip ci] fix bug when keyboard tracking for QuantitySpinBox is disabled and value is changed by mouse wheel or the spin buttons

src/Gui/QuantitySpinBox.cpp

@@ -629,6 +629,11 @@ void QuantitySpinBox::finishFormulaDialog()
 }
 
 void QuantitySpinBox::handlePendingEmit()
+{
+    updateFromCache(true);
+}
+
+void QuantitySpinBox::updateFromCache(bool notify)
 {
     Q_D(QuantitySpinBox);
     if (d->pendingEmit) {
@@ -639,9 +644,11 @@ void QuantitySpinBox::handlePendingEmit()
         d->quantity = res;
 
         // signaling
-        d->pendingEmit = false;
-        valueChanged(res);
-        valueChanged(res.getValue());
+        if (notify) {
+            d->pendingEmit = false;
+            valueChanged(res);
+            valueChanged(res.getValue());
+        }
     }
 }
 
@@ -791,8 +798,7 @@ QAbstractSpinBox::StepEnabled QuantitySpinBox::stepEnabled() const
 void QuantitySpinBox::stepBy(int steps)
 {
     Q_D(QuantitySpinBox);
-
-    handlePendingEmit();
+    updateFromCache(false);
 
     double step = d->singleStep * steps;
     double val = d->unitValue + step;
@@ -802,6 +808,7 @@ void QuantitySpinBox::stepBy(int steps)
         val = d->minimum;
 
     lineEdit()->setText(QString::fromUtf8("%L1 %2").arg(val).arg(d->unitStr));
+    updateFromCache(true);
     update();
     selectNumber();
 }

src/Gui/QuantitySpinBox.h

@@ -159,6 +159,7 @@ protected:
 
 private:
     void updateText(const Base::Quantity&);
+    void updateFromCache(bool);
     QString getUserString(const Base::Quantity& val, double& factor, QString& unitString) const;
     QString getUserString(const Base::Quantity& val) const;