Adjust useForm to more gracefully handle page refreshes

[benmartin-coforma]

Description

This PR should fix the autosave refresh bug without breaking anything else.

Related ticket(s)

N/A

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How to test

To verify the bug is fixed:

1. Create a new report
2. Navigate to a page with more than one text input
3. Enter a value in one of the text inputs
4. Blur that field - which will trigger an autosave
5. Refresh the browser window
6. Enter a value in a different text input
7. Blur that field - which will trigger another autosave
8. Refresh the browser window
9. Note that both inputs still contain your values

Also:

1. idk, try a bunch of form... stuff. It should all work good.

Important updates

n/a

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Author checklist

• I have performed a self-review of my code
• I have added thorough tests, if necessary
• I have updated relevant documentation, if necessary

[codeclimate]

Code Climate has analyzed commit 7d38a33 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (90% is the threshold).

This pull request will bring the total coverage in the repository to 93.8% (0.0% change).

View more on Code Climate.