[Win32] Fix default value for autoscale disablement propagation

Autoscale disablement at the level of individual controls was recently
made public API. With that change, the previous activation of that
feature via hidden data fields on the controls was wrapped into a proper
object-oriented representation. Previously, when not having the data
field for propagation of autoscale disablement to children set, it was
assumed to be activated by default. With the recent change, the default
was accidentally changed, so that propagation to children is deactivated
by default.

To preserve backward compatibility, this change restores the original
behavior of propagating autoscale disablement to children in case the
according data value is not set.

Author: HeikoKlare

bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Control.java

@@ -1311,7 +1311,7 @@ public void setData(String key, Object value) {
 @Deprecated(since = "2026-03", forRemoval = true)
 private void updateAutoScalingModeFromData() {
 	Object propagateAutoscaleDisabled = getData(PROPOGATE_AUTOSCALE_DISABLED);
-	boolean propagateAutoscaling = propagateAutoscaleDisabled != null && Boolean.parseBoolean(propagateAutoscaleDisabled.toString());
+	boolean propagateAutoscaling = propagateAutoscaleDisabled == null || Boolean.parseBoolean(propagateAutoscaleDisabled.toString());
 	Object autoscaleDisabled = getData(DATA_AUTOSCALE_DISABLED);
 	boolean isAutoscaleDisabled = autoscaleDisabled != null && Boolean.parseBoolean(autoscaleDisabled.toString());
 	if (isAutoscaleDisabled) {