repoview: fix the filter created by `extrafilter`
The `name` variable was updated in each interaction of the loop, making all new
filters inheriting from the same base (the last one iterated), leading to
terrible terrible misbehavior.
= Mercurial XXX =
== New Features ==
== Default Format Change ==
These changes affect newly created repositories (or new clones) done with
Mercurial XXX.
== New Experimental Features ==
== Bug Fixes ==
== Backwards Compatibility Changes ==
== Internal API Changes ==
== Miscellaneous ==