Impure pipes need to live on the view
that used them and need a new instance for
each call site.
Impure pipes need to live on the component view, cached across all child views,
and need a new pure proxy for each for
each call site that lives on the view
of the call site.
Fixes#8408
This bug was introduced not long ago by 152a117d5c27e56d1b32d69df2f69d34b94c0760
