#1 Clamfs doesn't block virus - caching bug ?

[M E]

OS: CentOS 5.2 64 Bit, ClamAV 0.95, Kernel: 2.6.18-92.22.XEN, FUSE v2.7.4, Multicore XEN System

The following behaviour is reproducable:

virus files are opened in rw mode, closed --> works in every case
virus files are opened in ro mode, closed --> At this step clamfs should block access if file is a virus. If caching is enabled this is not the case, only if caching is disabled. Therefore, I assumed a bug in caching code.
Finally virus files are unlinked --> works in every case