EndTextureMode does not restore framebuffer size correctly

[fruityloops1]

Describe the bug
EndTextureMode restores the framebuffer size by setting it to itself, which changes nothing. This causes problems when trying to use a RenderTexture of a different size than the window.

To Reproduce
Create a render texture with a different size than the window, then try to call GetScreenWidth/Height after using it and calling EndTextureMode and get the wrong values.

Expected behavior
The size is restored correctly (using a stack or similar)

The issue is here