Turning off an expression on a linked AE comp does not propagate to PPro

Steps to reproduce:

1. Create a Linked AE Comp in PPro
2. In AE, add an expression to something in that comp (eg. a random(100) on the opacity)
3. If necessary, render that shot in PPro until the timeline bar goes green
4. See how it works perfectly in PPro - the opacity flickers as expected
5. In AE, disable that expression (click the expression's = sign)
    
   Result:

Opacity in PPro still flickers; the timeline bar is still green because PPro thinks nothing's changed.

Expected:

Clip should need re-rendering in PPro because PPro should've been told by AE that the comp/clip has been updated.

I'm on the latest AE/PPro beta apps, both updated today. Once again, here is a situation where it would be fantastic to have AE's "Purge > All memory & disk cache" function in PPro. Could we PLEASE have this? Even in PPro's prefs, it's only possible to delete "unused" media cach files. I regularly want to delete ALL cache files to force PPro to recreate all preview/render/etc. files when things (often) go a bit Pete Tong.
 
System info
    Application: Premiere Pro (Beta) v25.3.0.38
    OS: Windows v10.0.19045, RAM: 127.91 GB GB, CPUs (logical): 32