Filter subscriptions are lost on APK reinstall

[rscott]

Version: adblockplussbrowser-debug.apk (1.1.2 candidate; md5sum: d165a476e198eb804a4ec4ff071f474e)
Samsung Internet version: 5.4.02.3
Platform: Pixel/Android 8.0

Reproduction:

• Install the APK.
• Change the following preferences:
  • Configure your filter lists > enable "Deutsch".
  • More blocking options > enable "Disable anti-ad blocking messages".
  • Add the site "slashdot.org" to the whitelist.
  • Configure automatic updates > Always.
  • Uncheck "Allow some nonintrusive advertising".
• Install the APK again (without uninstalling).
• Observe:
  • Of the language-based filters, only English is enabled. (reset)
  • Under "More blocking options", no filters are enabled. (reset)
  • Under "Whitelisted websites", "slashdot.org" is still present. (preserved)
  • "Configure automatic updates" is still set to Always. (preserved)
  • "Allow some nonintrusive advertising" is still unset. (preserved)

Expected result:

• Filter lists should be preserved after an APK reinstall.

Additional information:

This is a regression since the previous release.

[jwangenheim]

I was not able to reproduce this issue on Nexus 5X with Android 8 and Samsung Galaxy S5 with Android 6.0.1

[rscott]

Truly bizarre -- this is reproduceable consistently on my Pixel, but not on any other device I've tried, including an identical Pixel from TestObject. Marking "WFM".