The test suite machinery sometimes misses the boot splash

https://jenkins.tails.boum.org/view/RM/job/test_Tails_ISO_stable/46/cucumberTestReport/installing-packages-through-apt/apt-sources-are-configured-correctly/ says “FindFailed: can not find TailsBootSplash.png on the screen”, while the video shows said boot splash. I of course can’t mark as fragile all potentially affected scenarios, so priority > normal :)

I’m pretty sure I’ve heard of this bug already, but failed to find the corresponding ticket. Sorry if that’s a duplicate.

Feature Branch: test/10777-robust-boot-menu

Parent Task: #10288

Original created by @intrigeri on 10777 (Redmine)

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