guake doesn't remember the sizes of split screen on reboot

**Describe the bug**
When you split the screen, it creates 2 screens of the same size that you can resize manually. If you resize, then on reboot, the 2 screens are there but the sizes came back to normal (equal size).

**Expected behavior**

It should maintain the sizes.

**Actual behavior**

Sizes resets.

**To Reproduce**

Split a screen.
Resize it.
Reboot.
Start quake.
This is considering that guake is set to run at boot.

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Please run `$ guake --support`, and paste the results here. Don't put backticks (`` ` ``) around it! The output already contains Markdown formatting. And make sure you run the command **OUTSIDE** the Guake.

$ guake --support

Guake Version: 3.6.3

Vte Version: 0.60.3

Vte Runtime Version: 0.60.3

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GTK+ Version: 3.24.20

GDK Backend: GdkX11.X11Display

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Desktop Session: ubuntu

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Display: :0

RGBA visual: True

Composited: True

* Monitor: 0 - BOE eDP-1
* Geometry: 1920 x 1080 at 0, 0
* Size: 344 x 194 mm²
* Primary: True
* Refresh rate: 60.00 Hz
* Subpixel layout: unknown