strange bug where update event didn't clear dirty flags, reposting #168
Description
Darrelle has a createPngWalk process that reliably triggers the warning "strange bug where update event didn't clear dirty flags, reposting". The process does run properly, but I'd like to understand what's going on. Also I suspect that this may be subtly slowing the process. The products have ephemeris (TCA) data, and I did convince myself it has something to do with that.
I'm quieting the log level from INFO to FINE, since it seems like this is not really a bug the operator needs to be aware of.