Document Link Picker for ChannelInfo doesn't allow to pick from /content/documents/administration

When a channel info has a @JcrPath parameter like this, it's impossible to pick a document from /content/documents/administration/document1 because the picker always start showing from /content/documents/myhippoproject/ and it doesn't change the content when clicking on the parent folder (/content/documents/) in the breadcrumb either.

@FieldGroupList({
        @FieldGroup(
                titleKey = "mychannel",
                value = { "mydefaultchannelpixelvars" }
                )
        })
public interface MyChannelInfo extends ChannelInfo {

    @Parameter(name = "mydefaultchannelpixelvars")
    @JcrPath(
            pickerConfiguration = "cms-pickers/documents-only",
            pickerSelectableNodeTypes = { "mypixelvariablesdocument" },
            pickerInitialPath = "/content/documents"
            )
    String getMyPixelVariables();

}

Note that in real projects we keep many non-translated documents such as resource bundles in /content/documents/administration/ folder because those should be maintained differently from the translated channel root folders such as /content/documents/myhippoproject/ or /content/documents/myhippoproject-fr/.

If it's not possible to pick a document from a non-translated folder like /content/documents/administration/, it put a big limitation in projects.