When adding Behaviors, I would like to filter branches separately from pull requests in the plugin configuration. Currently, you can only add another Behaviour to filter by name using a regular expression but this regexp will filter both the branch names and PR ID's simultaneously – the filtering should be allow on a per Behavior basis:
The Behavior "Discover branches" needs to have its own regular expression.
The Behavior "Discover pull requests from origin" needs to have its own regular expression.
... so that when both Behaviors are added together their filtering is configured differently (otherwise the regular expression gets really ugly and sometimes impossible to configure).