Created attachment 1405796 [details]
gnome-ibus-input-into-run-command-window-candidate-list-position-wrong.png

- I installed Fedora-Workstation-netinst-x86_64-28-20180302.n.0.iso in qemu.

- The installation was done in Japanese.

- I logged into Gnome

- I opened a gnome-terminal

- I selected ibus-kkc and typed some Japanese into the gnome-terminal

- Now I typed Alt+F2 to open the "enter command" dialog.

- ibus-kkc is still selected, I type something but the candidate list
  appears at the cursor position in the gnome terminal, not at the
  cursor position in the "enter command" dialog.

See screenshot.