[Lazarus] How can I see what has changed in my project?

[Bo Berglund]

I have Lazarus 2.0.2 from 2019-04-13 x86_64-win64-win32/win64 (from
help/about) on a Windows 7 x64 laptop.

I have opened a project I worked on a few weeks ago in order to check
some implementation detail, then left it sitting untouched for a few
days. As far as I can recall there was no changes made in this
session.

But now Lazarus shows that the FormMain unit (with the main form) has
changed (an * before the name onthe tab and the save buttons enabled).

How can I find out what Lazarus thinks has changed????

I believe nothing was changed, but still Lazarus signals a change.
I have scrolled the source and there is no indication in the left edge
of any change.

I don't want to save an unknown change but if I just forgot what it
was I also do not want to lose a bona-fide edit.
All files on disk are dated July 5 or older.


-- 
Bo Berglund
Developer in Sweden