It would have been a good touch if those of us who posted a FP report would have gotten an email advising us that it's fixed. Perhaps that's coming later today?
No, they don't do that, they would rather spend money elsewhere. Imagine the time sending emails for a false positive that even effected a single percent of their user base of many millions of people.....it would take longer than it is worth.
How in the world an app that has been out literally for years gets listed as a virus and rendered useless is a mystery to me.
No one posted what the specific detection was, but it was probably a Generic signature, they use those so one signature can catch many forms of malware.
Avast! is very low on FPs.....I mean
very low....so while it might be a bit much to think this is a "hopefully once in a lifetime event" (if you mean a FP in general), take heart that you have what is at any given day the AV with the lowest false positive rate possible.