Guard against dereferencing invalid file cache iterator. (#1697)
Guard against dereferencing invalid file cache iterator. (#1697)

Analogous to #1696, but for the file cache.
OpenImageIO/oiio,OpenImageIO/oiio,lgritz/oiio,lgritz/oiio,OpenImageIO/oiio,OpenImageIO/oiio,lgritz/oiio,lgritz/oiio