The plugin was designed to try to keep every scroll, bookmarks, marks, folds, cursors and everything between sessions.
Unfortunately sublime text does not send "on_reload" event which prevents this plugin for restoring precious data.
Fortunately this plugin adds a new command called "refold", which will restore the folding of the previous fold command. ( if the previous fold was saved at least one time )
Unfortunately sublime text yet again does not send some vital events (on_application_close, on_project_close, on_project_open, on_viewport_change , on_viewport_extent_change, on_... ) to keep this plugin functioning smoothly.
There is also a bug in the API ( set_viewport_position) which prevents this plugin from restoring scroll of xml/html documents, including: xml, tpl, html, xhtml, etc