Can't change keybord in Guake

**Describe the bug**
I use Gnome with Fedora 33.
Guake Terminal: 3.7.1
VTE: 0.62.1
VTE runtime: 0.62.1
Gtk: 3.24.24
I use autohide feature to hide guake window if it looses focus. F12 is shortcut to display Guake again.
I can't change keyboard to use other language as pressing Super Key + Space bar makes Guake disappear.

**Expected behavior**

Pressing Super Key + Space should not trigger Guake hide.

**Actual behavior**
Guake window hides pressing Super Key + Space.

**To Reproduce**

I also use keyboard layout per window, meaning that default keyboard is US-EN, keyboard changes for current window only.

-------------------------------------------------------------------------------
$ guake --support

Guake Version: 3.7.1

Vte Version: 0.62.1

Vte Runtime Version: 0.62.1

--------------------------------------------------
GTK+ Version: 3.24.24

GDK Backend: GdkX11.X11Display

--------------------------------------------------
Desktop Session: gnome

--------------------------------------------------
Display: :0

RGBA visual: True

Composited: True

* Monitor: 0 - XWAYLAND1
* Geometry: 1920 x 1080 at 0, 0
* Size: 510 x 290 mm²
* Primary: True
* Refresh rate: 59.96 Hz
* Subpixel layout: unknown
* Monitor: 1 - XWAYLAND0
* Geometry: 1920 x 1080 at 1920, 0
* Size: 340 x 190 mm²
* Primary: False
* Refresh rate: 59.96 Hz
* Subpixel layout: unknown