Has this always been the case? I just lost some work as follows: I created a comment and filled it with everything I had learned in making the patch, but before clicking outside the comment (i.e. committing it) I hit ctrl-S and then exited Pd. To my surprise, the next time I opened the patch, all my notes were gone. Only an empty comment object remained.
Once I had figured out what had happened, I tried the same with an object with similar results: put a new object, typed "osc~ 200" into it but before clicking outside, hit ctrl-S and exited. Only an uninitialized object is saved.
In both cases, hitting ctrl-S makes the asterisk following the patch name go away. If this isn't recent behavior, I wonder how I developed this keyboard habit?