[gnome-todo] task-list-eds: Properly update GNOME To Do API version

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit a1c54a042452ea0370cdf1a42d5492477a41b377
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Sun Mar 31 14:32:39 2019 -0300

    task-list-eds: Properly update GNOME To Do API version
    
    Otherwise, it keeps migrating tasks over and over.

 plugins/eds/gtd-task-list-eds.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/plugins/eds/gtd-task-list-eds.c b/plugins/eds/gtd-task-list-eds.c
index b377e84..3106fd4 100644
--- a/plugins/eds/gtd-task-list-eds.c
+++ b/plugins/eds/gtd-task-list-eds.c
@@ -213,6 +213,8 @@ maybe_migrate_todo_api_version (GtdTaskListEds *self)
       g_debug ("  Migrating task list to GNOME To Do API v%u", new_api_version);
 
       migration_vtable[i].migrate (self, changed_tasks);
+
+      e_source_gnome_todo_set_api_version (gnome_todo_extension, new_api_version);
       api_version_changed = TRUE;
     }