Edited content get lost when clicked on save button

[hello2parth]

Steps to reproduce the issue

1. npm ci
2. npm run strat
3. open localhost:3000
4. click on "Edit Text"
5. Edit content .. for example: removed "f library" as shown in below screenshot
6. click on "Stop editing and save" button (top left) without clicking anywhere else in pdf
7. edited content will get lost, refer below screenshot