Fix index out of range error in get_latest_tag

app/tasks/importtasks.py

@@ -113,6 +113,7 @@ def get_latest_tag(git_url):
 		origin.fetch()
 
 		refs = repo.git.ls_remote(tags=True, sort="creatordate").split('\n')
+		refs = [ref for ref in refs if ref.strip() != ""]
 		if len(refs) == 0:
 			return None
 
@@ -394,8 +395,6 @@ def check_update_config(self, package_id):
 	err = None
 	try:
 		check_update_config_impl(package)
-	except IndexError as e:
-		err = "Unable to find the reference.\n" + str(e)
 	except GitCommandError as e:
 		# This is needed to stop the backtrace being weird
 		err = e.stderr

app/templates/todo/user.html

@@ -57,6 +57,9 @@
 	<div class="mt-5"></div>
 	<a class="btn btn-secondary float-right" href="{{ url_for('todo.tags', author=user.username) }}">See All</a>
 	<h2>{{ _("Packages Without Tags") }}</h2>
+	<p>
+		Labelling your packages with tags helps users find them.
+	</p>
 	<div class="list-group mt-3 mb-5">
 		{% for package in needs_tags %}
 			<a class="list-group-item list-group-item-action" href="{{ package.getDetailsURL() }}">