Group/stream names may be invalid for cache keys #7
Description
The feature added in 3.2.0 to optimise startup by avoiding the back-and forth to check if groups and streams exist uses the raw name as the cache key. In some situations, this name may contain unsupported characters and cause a fatal error.
For example: one client likes to use slashes in their CloudWatch group names but has a site using Symfony, which specifies the characters {}()/\@: as reserved for cache item keys.