imagewriter: Disable customisation of custom IMGs

src/imagewriter.cpp

@@ -1293,6 +1293,10 @@ void ImageWriter::clearSavedCustomizationSettings()
     _settings.sync();
 }
 
+void ImageWriter::disableImageCustomization() {
+    _initFormat.clear();
+}
+
 bool ImageWriter::hasSavedCustomizationSettings()
 {
     _settings.sync();

src/imagewriter.h

@@ -124,6 +124,7 @@ class ImageWriter : public QObject
 
     Q_INVOKABLE bool getBoolSetting(const QString &key);
     Q_INVOKABLE void setSetting(const QString &key, const QVariant &value);
+    Q_INVOKABLE void disableImageCustomization();
     Q_INVOKABLE void setImageCustomization(const QByteArray &config, const QByteArray &cmdline, const QByteArray &firstrun, const QByteArray &cloudinit, const QByteArray &cloudinitNetwork);
     Q_INVOKABLE void setSavedCustomizationSettings(const QVariantMap &map);
     Q_INVOKABLE QVariantMap getSavedCustomizationSettings();

src/main.qml

@@ -1320,6 +1320,7 @@ ApplicationWindow {
 
     function onFileSelected(file) {
         imageWriter.setSrc(file)
+        imageWriter.disableImageCustomization()
         osbutton.text = imageWriter.srcFileName()
         ospopup.close()
         osswipeview.decrementCurrentIndex()