Scarlets & Blues annotations are lost if you navigate between NextJS project pages

[eatyourgreens]

Package

app-project lib-classifier

Describe the bug

PFE remembers your subject and annotations if you leave the Classify page and come back again to continue classifying. Try it out here on Measuring the ANZACS: https://www.zooniverse.org/projects/zooniverse/measuring-the-anzacs/classify

• fill out the dropdown menus and text box.
• go to the project home page and then come back.
• go to your Notifications (top menu) and then back.

You should find that you remain on the same subject and the form is pre-filled with your annotations when the classifier remounts.

Try out the same thing with the dropdown menus on HMS NHS and you should find that the menu values are preserved if you leave the page and use the Back button to come back: https://www.zooniverse.org/projects/msalmon/hms-nhs-the-nautical-health-service/classify/workflow/18624/subject-set/83482

Similarly the transcription task annotations for Davy Notebooks are also remembered if you leave the page and come back. https://www.zooniverse.org/projects/humphrydavy/davy-notebooks-project/classify/workflow/18786

Now try filling out the text boxes for Scarlets and Blues: https://www.zooniverse.org/projects/bogden/scarlets-and-blues/classify/workflow/18505/subject-set/98879/subject/69734438 If you leave the page, then return with the Back button, your annotations flash up briefly then vanish.

Here's a Talk thread where a volunteer reports starting a transcription, going to Talk then losing her work when she returned with the Back button. https://www.zooniverse.org/projects/bogden/scarlets-and-blues/talk/3533/2215783?comment=3634120

Here are a couple of screen recordings. The bug seems specific to the text task in Scarlets & Blues, and appears when you go to the home page and back.

HMS NHS remembers my entries when I leave and come back.

https://user-images.githubusercontent.com/59547/141641780-2c2597d6-e204-4685-81b7-9cef0a764a10.mov

Davy Notebooks also remembers work across pages.

https://user-images.githubusercontent.com/59547/141683491-239bbfa5-34de-440a-b14d-e63af845f352.mov

Scarlets and Blues deletes my classification if I go to the home page and come back.

https://user-images.githubusercontent.com/59547/141641869-2221c01d-f96a-48ec-9741-08d5d8e3dc97.mov

Tested in Firefox 94 on MacOS 11.6.1.

[eatyourgreens]

It's worth checking here whether the bug is in individual subject selection, which is only used by S&B, or in the text task.

[eatyourgreens]

It’s also worth testing this on #2520, which removes global storage of your current annotations.

[eatyourgreens]

Here's another recording of HMS NHS, showing that text annotations can be remembered across pages, so the bug must be specific to projects that use subject URLs.

https://user-images.githubusercontent.com/59547/141781844-4b46767e-bc41-4d92-b4b0-956beb8047f8.mov

[eatyourgreens]

Browser caching of your active annotation varies from browser to browser, so here's a handy table. Tested by making a couple of annotations, going to Talk and back with the browser Back button.

Browser	Measuring the Anzacs (PFE)	HMS NHS (FEM)
Chrome 92	✓	𐄂
Firefox 94	✓	✓
Safari 15	✓	✓
Edge 95	✓	𐄂