QmlDesigner: Fix SpinBox value reset on focus loss

Task-number: QDS-9770
Change-Id: I8a4d73e7abe8dbb5c62c571fc9980a0f78a5f819
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

share/qtcreator/qmldesigner/propertyEditorQmlSources/imports/StudioControls/RealSpinBox.qml

@@ -288,22 +288,22 @@ T.SpinBox {
     }
     onRealValueModified: myTimer.restart()
     onFocusChanged: {
-        if (control.focus) {
+        if (control.focus)
             control.dirty = false
-        } else {
-            // Make sure displayed value is correct after focus loss, as onEditingFinished
-            // doesn't trigger when value is something validator doesn't accept.
-            spinBoxInput.text = control.textFromValue(control.realValue, control.locale)
-
-            if (control.dirty)
-                spinBoxInput.handleEditingFinished()
-        }
     }
     onDisplayTextChanged: spinBoxInput.text = control.displayText
     onActiveFocusChanged: {
         if (control.activeFocus) { // QTBUG-75862 && mySpinBox.focusReason === Qt.TabFocusReason)
             control.preFocusText = spinBoxInput.text
             spinBoxInput.selectAll()
+        } else {
+            // Make sure displayed value is correct after focus loss, as onEditingFinished
+            // doesn't trigger when value is something validator doesn't accept.
+            if (spinBoxInput.text === "")
+                spinBoxInput.text = control.textFromValue(control.realValue, control.locale)
+
+            if (control.dirty)
+                spinBoxInput.handleEditingFinished()
         }
     }