After checking your git status you get the following output, which shows the file beta-notes.js in the commit but also unstaged. How can this situation occur?

Change to be committed:
(use "git reset HEAD <file>..." to unstage)
modified: beta-notes.js
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
(use "git checkout --<file>..." to discard changes in working directory)
modified: beta-notes.js