delta-find: move pre-filtering of individual revision in its own function
This goes one step further than the previous change by making the pre-filtering
of individual candicates revision in its own function. This will allow subclass
to easily configure this filtering with their own constrains.
The `if True:` part help the readability of this diff a lot and will be drop in
to the next changesets.
= 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 ==
* remove the experimental infinite push extension
== Internal API Changes ==
== Miscellaneous ==