Switching between test modes doesn't always restart the test with the new mode

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Is there an existing issue for this?

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Does the issue happen when logged in?

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Does the issue happen when logged out?

Yes

Does the issue happen in incognito mode when logged in?

Yes

Does the issue happen in incognito mode when logged out?

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Current Behavior

If you quickly change your test mode twice (e.g., start at time, change to words and then to quote), the test can still be a words test instead of a quotes test.

Expected Behavior

Test should contain a quote, rather than the random words generated in the words mode.

Steps To Reproduce

1. Change your mode to time
2. Using the test config bar, change your mode to words
3. Quickly, change your mode to quote
4. Notice how you still have the words from the words mode, rather than a quote

Environment

• OS: Arch Linux
• Browser: Firefox
• Browser Version: 153.0.3

Anything else?

https://github.com/user-attachments/assets/5cc502d1-2031-4d09-925c-e48b50193473

Reproduce the rapid time → words → quote sequence using the test config bar, then trace the mode-change and test-restart flow from that UI entry point. Confirm the final test uses quote content rather than the earlier words content, including when changes happen quickly.