I just did the following:
Select a single file in the file list.
Go to the tag panel field TITLE and add an "s" to a word, just to make change.
I do not press Ctrl-S or click the button in the tool bar.
I click on the selected file in the file list.
A message pops up and ask whether I want to save the changes.
(This is 3.11f in use)
I would say, that is ok.
Thanks for taking time to help with this issue.
I also am using 3.11f
The workflow appears to be the same.
I followed your steps ...
After I add the "s" ... to make the change ...
I click the file in the file list.
When I click on the file, the "s" is removed in the Tag Panel. Note that when I click on the file to select it, the field that my cursor is over becomes selected and is in edit mode.
It still appears to be an issue with me. There might be a setting, although I have not changed many (if any) from the default.