fix: crash current must not be NaN during bulk download

[dixidroid]

Description

LEARNER-10248

Fix crash of IllegalArgumentException - current must not be NaN during bulk download.

• Add validation to ensure that the progress value is not NaN.

Steps to reproduce (specific courses)

Variant-1

• Open the course named Quantum Mechanics for Scientists and Engineers 1
• Click on the video tab and start that bulk download.
• Try to expand the sections from the video tab, that lead the app to the crash.

Variant-2

• Open the course named Quantum Mechanics for Scientists and Engineers 1
• Click on the video tab and start that bulk download.
• Rapidly click on the arrow icon to expand the section from the Home tab, and the action leads the app to the crash.

[openedx-webhooks]

Thanks for the pull request, @dixidroid!

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[mphilbrick211]

Hi @dixidroid! Are you contributing as an individual, or on behalf of an organization?

[dixidroid]

hi @mphilbrick211! I'm a 2U member and someone removed my email from the Edx organization. I've already created an issue here - openedx/axim-engineering#1317 but still waiting...not sure how long it will take.

[mphilbrick211]

Hi @dixidroid! You can have your manager reach out to oscm@axim.org as well. Your manager can ask that you be added to our existing 2U agreement.

[dixidroid]

Hi @mphilbrick211! I was added to the edX org. Do you know how to rerun the openedx/cla check?

[mphilbrick211]

Hi @mphilbrick211! I was added to the edX org. Do you know how to rerun the openedx/cla check?

@dixidroid - you should be able to re-run them and the CLA check should turn green. If you try again and it's not working, let me know!