Re: Use initialValue when cached value is undefined

[bernhardoj]

Details

Currently, falsey initial value (null and false) is ignored, so we change the condition to check whether the initial value is undefined or not.

Related Issues

Expensify/App#35906

Automated Tests

Added test.

Manual Tests

1. Close the app if it's opened
2. Reopen the app
3. Open any chat
4. Do step 3 on several chats
5. Verify the chat screen/skeleton is shown instead of blank screen for a brief moment

Author Checklist

• I linked the correct issue in the ### Related Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
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  • Android / native
  • Android / Chrome
  • iOS / native
  • iOS / Safari
  • MacOS / Chrome / Safari
  • MacOS / Desktop
• I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
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  • I verified that any callback methods that were added or modified are named for what the method does and never what callback they handle (i.e. toggleReport and not onIconClick)
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  • I verified that comments were added to code that is not self explanatory
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• I tested other components that can be impacted by my changes (i.e. if the PR modifies a shared library or component like Avatar, I verified the components using Avatar are working as expected)
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• I verified that if a function's arguments changed that all usages have also been updated correctly
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  • The only data being stored in the state is data necessary for rendering and nothing else
  • If we are not using the full Onyx data that we loaded, I've added the proper selector in order to ensure the component only re-renders when the data it is using changes
  • For Class Components, any internal methods passed to components event handlers are bound to this properly so there are no scoping issues (i.e. for onClick={this.submit} the method this.submit should be bound to this in the constructor)
  • Any internal methods bound to this are necessary to be bound (i.e. avoid this.submit = this.submit.bind(this); if this.submit is never passed to a component event handler like onClick)
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• I have checked off every checkbox in the PR author checklist, including those that don't apply to this PR.

Screenshots/Videos

Android: Native

Screen.Recording.2024-02-14.at.13.58.29.mov

Android: mWeb Chrome

Screen.Recording.2024-02-14.at.14.01.06.mov

iOS: Native

Screen.Recording.2024-02-14.at.14.05.55.mov

iOS: mWeb Safari

Screen.Recording.2024-02-14.at.14.01.41.mov

MacOS: Chrome / Safari

Screen.Recording.2024-02-14.at.14.06.30.mov

MacOS: Desktop

Screen.Recording.2024-02-14.at.14.07.33.mov

[Julesssss]

FYI @yuwenmemon, this is related to this issue so you may want to review

[paultsimura]

This change caused a couple of regressions (e.g. Expensify/App#37743, Expensify/App#37746) and was eventually reverted in Expensify/App#37804.