"I can view and print a PDF file stored in /usr/share" scenario is fragile

This one is very interesting: something (probably among Sikuli, GTK, X.Org, Linux, QEMU or something else, sorry for the lack of choice) becomes mad while typing “/home/amnesia/output” in the GTK file chooser, that is after typing “/home/am” it types “n” many times.

It may be that all scenarios that use the GTK file chooser are affected. I suggest we paste the text instead of typing it char-by-char.

Feature Branch: test/10775-fragile-Evince-GTK-file-chooser

Parent Task: #10288

Original created by @intrigeri on 10775 (Redmine)