I don't see how that's possible unless the file was not writable and was never really updated - or unless when you go back to view them (to edit) your browser is remembering the values you filled in last time (like auto-complete) etc...
but the titles are read from the text file in the filters directory. They aren't database related and nothing else (install scripts etc...) does anything at all with them.
If you had different titles in there at some point, you'll have to check the box to update everyone again, or else any old titles will stay stuck and no longer advance with post count, as it'll appear like a custom title.
