Font not inherited in theme type variation

[jotson]

Godot version

4.1.1.stable

System information

Ubuntu Linux 22.04, Nvidia

Issue description

Creating a new theme type variation that inherits from a Base Type of Button does not inherit the font of the Button. Instead, it inherits from the Default Font for the theme and ignores the Base Type font. However, the inherited button does correctly inherit other properties like Styleboxes.

I expected the new button to inherit all of the properties of the base type including the font.

Steps to reproduce

1. Create a new theme
2. Set a default font for the theme
3. Create a theme item for Button
4. Add a different custom font for the Button
5. Create a theme item called Button2
6. Set the Base Type for Button2 to Button
7. Add a Button to a scene
8. Set the Type Variation to Button2

Minimal reproduction project

ThemeTypeFontBug.zip

[DanielGSilva]

This also applies to font size.