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Yes, but I meant that e.g. you select the "newOne" theme and theme changes to "newOne" and you go automatically to topic 1.
You then select the "oldTwo" theme, and the theme changes to "oldTwo" theme and you go to topic 2
If you then go to topic 1 through the normal navigation, you are still in "oldTwo" theme and not in "newOne", which is the theme for this topic.