Detection result drawings are displayed even in live

[norihiro]

Source/filter types

• Face Tracker (filter)

To Reproduce
Steps to reproduce the behavior:

1. Set non-studio mode.
2. Add face tracker filter to a camera input. Enable "Show face detection results".
   • The rectangle is displayed, where it should not be.
3. Switch to another scene (show-count should become 0)
4. Go back to the scene with the camera
   • The rectangle is not displayed, as expected.

Desktop (please complete the following information):

• OS: macOS
• OBS Version: 31.1.1
• Face Tracker Version: 0.7.2 (arm64)

Additional context

It looks the filter cannot get activate_refs.