Refresh Button Minor Bug When No Word Found for User

[mlajkim]

Background

When a user without any words (or AKA no semesters so far) won't have his/her preference updated when the refresh button is clicked (or automatically clicked once you open Wordnote on browser).

This is due to the fact that the refresh flow ends when the latestSemester is undefined (when the user never has created a single word yet) as the red square in following activity diagram:

TODOs

• Fix the diagram
• Fix the flow (so that the getPreference() is always run
• Make sure that the getSemesters() and getPreference() run simultaneously
  • Make sure that the simultaneous run is well documented in standard.
• Write more TODOs