1. Go to e.g. https://svgtranslate.toolforge.org/File:Tulunadu.svg
2. Switch the target language to ಕನ್ನಡ (kn) or any other language that already has labels
3. Do not edit any labels
4. Note that the localised strings are displayed in the form fields
5. Try to switch to any other language
6. Note that the 'unsaved' dialog is shown, even though you didn't edit anything

The unsaved dialog should only show if changes are made (including if they were made previously and saved in localStorage).

Reported at T430577#12069345