DS does not save files when you move from one project to another

So, when you move from one project to another, sometimes you get indication that your files were not saved although the change was seen on the form view already.

Steps to reproduce

1. open project 1 and move around things on the form view
2. go to welcome page
3. open another project
4. get this:

Expected behavior:

• changed files are updated also on the file system and this dialog is not changed.

IF user changes code manually and does not save those files, then the dialog is valid.