filter dependency even when install-depencency is True

This must prevent the useless download of bt5 which are already installed
And so this is supposed to reduced the number of bt5 installed by configurator and make it faster

product/ERP5/Tool/TemplateTool.py

@@ -1304,20 +1304,24 @@ class TemplateTool (BaseTool):
       resolved_template_list = self.resolveBusinessTemplateListDependency(
                    template_list)
 
-      if not install_dependency:
       installed_bt5_set = set([x.title
                                for x in self.getInstalledBusinessTemplatesList()])
+
       def checkAvailability(bt_title):
         return bt_title in template_list or bt_title in installed_bt5_set
-        missing_dependency_list = [i[1] for i in resolved_template_list
+      missing_dependency_list = [i for i in resolved_template_list
                                  if not checkAvailability(i[1].replace(".bt5", ""))]
-        if len(missing_dependency_list) > 0:
+
+      if not install_dependency and len(missing_dependency_list) > 0:
         raise BusinessTemplateMissingDependency,\
             "Impossible to install, please install the following dependencies before: %s" \
-              % missing_dependency_list
+            % [x[1] for x in missing_dependency_list]
 
       activate_kw =  dict(activity="SQLQueue", tag="start_%s" % (time.time()))
-      for repository, bt_id in resolved_template_list:
+
+      missing_dependency_list.extend([x for x in resolved_template_list if 
+                                      x[1] in template_list])
+      for repository, bt_id in missing_dependency_list:
         bt_url = '%s/%s' % (repository, bt_id)
         param_dict = dict(download_url=bt_url, only_newer=only_newer)
         if update_catalog is not _MARKER: