Turning on vsync limits fps to an incorrect value when using vulkan

To reproduce:

1. Start up the game with Vulkan enabled.

2. Enable VSync.

3. Fps is now permanently limited to 30 fps even if VSync is disabled again. Only way to fix it is to restart the game. (while VSync is turned off)

I have a 60hz monitor and fps are correctly limited to 60fps when using OpenGL. Also this has been an issue since 26.2 Snapshot 1.