[Fedora-i18n-bugs] [Bug 1517462] New: gnome-shell crash when focus on "password" in firefox

https://bugzilla.redhat.com/show_bug.cgi?id=1517462

Bug ID: 1517462
           Summary: gnome-shell crash when focus on "password" in firefox
           Product: Fedora
           Version: 27
         Component: ibus
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail],
                    [e-mail], [e-mail]

Description of problem:

I'm using firefox57. I try to use <Tab> key to change focus from "username"
field to "password" field on a website for login, the gnome shell crash.

What's more, when I use <Tab> key to change focus from "username" to
"password", the input method switch table(which is on the right of the gnome
top bar) disappeared. At this moment, if I was using the "US keybord" input
method,nothing happens, but if I was using "Intelligent Pinyin"( for Chinese)
or "Kana Kanji"(for Japanese), the gnome-shell crashed.

Sometimes when I click the "password" with mouse, it also crash.

you can visit this website for a try:
https://bugs.freedesktop.org/enter_bug.cgi?product=xorg