zehavibarak

Any success?

In addition, patching with emitEvent false will too cause multiple valueChanges to be triggered, as seen https://angular-pmxj3r-ipmezc.stackblitz.io

It did work in v9. In our project base classes are marked as **abstract**, and does not reference one of the annotations above. However, they do implement OnDestroy. I see...

Again, it did work in 9 and it is a good programming practice. Whatever change made in 10 will need to be meaningful for me to fold.

You are overthinking it. Works with empty @Directive()