DEVEL15-linux-fakestat-avoid-mtpt-fillin-issue-20080415

DEVEL15-linux-fakestat-avoid-mtpt-fillin-issue-20080415

LICENSE IPL10
FIXES 93898

"It is actually the detection of a "cell" in the mount point string
which triggers the (loosely consistent) fakestat handling - it's
treated like a foreign cell and the mount point is never "completely
evaluated", i.e. logically replaced by the root directory of the
volume in question. As a result, callbacks are ignored, as they go
against the directory and not the mount point."

(cherry picked from commit 5f6b59f4601e9892e082a145a75e5872818d2e06)