Fenix: [Bug] Intermittent failure debug(T) org.mozilla.fenix.settings.SettingsFragmentTest Add-on collection override pref is visible if debug menu active

[Archaeopteryx]

Regression from #14034 cc @csadilek

Log: https://firefoxci.taskcluster-artifacts.net/TU1hZI6jRDe1oRhTXHY9nA/0/public/logs/live_backing.log

[task 2020-09-29T23:06:26.913Z] SUITE: org.mozilla.fenix.settings.SettingsFragmentTest
[task 2020-09-29T23:06:26.913Z]   TEST: Add-on collection override pref is visible if debug menu active
[task 2020-09-29T23:06:26.913Z]     [Robolectric] org.mozilla.fenix.settings.SettingsFragmentTest.Add-on collection override pref is visible if debug menu active: sdk=28; resources=LEGACY
[task 2020-09-29T23:06:26.913Z]     [Robolectric] NOTICE: legacy resources mode is deprecated; see http://robolectric.org/migrating/#migrating-to-40
[task 2020-09-29T23:06:26.913Z]     I/AssetManager: no overlays.list file found
[task 2020-09-29T23:06:26.913Z]     I/MonitoringInstr: Instrumentation started!
[task 2020-09-29T23:06:27.013Z]     D/LifecycleMonitor: Lifecycle status change: androidx.fragment.app.FragmentActivity@46072b10 in: PRE_ON_CREATE
[task 2020-09-29T23:06:27.013Z]     D/LifecycleMonitor: Lifecycle status change: androidx.fragment.app.FragmentActivity@46072b10 in: CREATED
[task 2020-09-29T23:06:27.013Z]     V/FragmentManager: Run: BackStackEntry{295e30ed}
[task 2020-09-29T23:06:27.013Z]     V/FragmentManager: add: SettingsFragment{647d69f7} (136fd6a8-f26c-4da4-a27d-dbf5317a2307) test}
[task 2020-09-29T23:06:27.013Z]     V/FragmentManager: Added fragment to active set SettingsFragment{647d69f7} (136fd6a8-f26c-4da4-a27d-dbf5317a2307) test}
[task 2020-09-29T23:06:27.013Z]     D/FragmentManager: moveto ATTACHED: SettingsFragment{647d69f7} (136fd6a8-f26c-4da4-a27d-dbf5317a2307) test}
[task 2020-09-29T23:06:27.013Z]     D/FragmentManager: moveto CREATED: SettingsFragment{647d69f7} (136fd6a8-f26c-4da4-a27d-dbf5317a2307) test}
[task 2020-09-29T23:06:27.213Z]     I [glean/GleanCrashReporterService] No crashes to record, or file not found.
[task 2020-09-29T23:06:27.513Z]   FAILURE

The same test had also failed earlier today but with more output: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/G0fZh-nMSy64-IDkM9hduA/runs/0/artifacts/public/logs/live_backing.log

[csadilek]

That didn't fix it yet.

[csadilek]

Failure in https://github.com/mozilla-mobile/fenix/pull/15570 was because it didn't contain the fix yet.

[csadilek]

OK, had 10+ more pushes and not seeing this anymore. Closing.