Link to issue number:

Fixes #15469

Summary of the issue:

Cancelled/failed downloads from the add-on store are not cleared.
This prevents future attempts at installation.

Description of user facing changes

Users should now be able to install add-ons after cancelling or if the download fails

Description of development approach

Clear the download cache:

• when an add-on download fails/cancels
• when exiting the store
• when opening the store

Testing strategy:

Test cancelling and failing downloads. Ensure the status is reset and the add-on can be re-installed later

Known issues with pull request:

None

Change log entries:

Bug fixes

- Fixed bug where add-ons cannot be installed if a previous download failed or was cancelled. (#15469)

Code Review Checklist:

• Pull Request description:
  • description is up to date
  • change log entries
• Testing:
  • Unit tests
  • System (end to end) tests
  • Manual testing
• API is compatible with existing add-ons.
• Documentation:
  • User Documentation
  • Developer / Technical Documentation
  • Context sensitive help for GUI changes
• UX of all users considered:
  • Speech
  • Braille
  • Low Vision
  • Different web browsers
  • Localization in other languages / culture than English
• Security precautions taken.