Bug: when switching to PIP, it stretches entire content, instead of video itself

[AndroidDeveloperLB]

I can see the text and button getting stretched to the minimized size, and only when fully reaching PIP mode, it shows just the video.

Speaking of PIP, I don't see it working on YouTube, even though it's updated to latest version and I have final version of Android O

[w3ggy]

Still didn't fixed :( But in the youtube app works fine.