Password textbox loses focus in prior to textbox in locked profile [security issue]

[xxx]

After locking computer via ctrl+l sometimes (actually happened twice to me) textbox on login screen loses focus. And (wow!) entered password appears in the window that was focused in the locked profile. Example: I locked screen when chrome had focus, entered password then appeared in address bar. It's not easy to move focus back to password textbox, but I did it once somehow. OS is Ubuntu 16.04.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1734392/+editstatus and add the package name in the text box next to the word Package.

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