[Bug 30589] PDF transformer: Crash after calculating available space

http://bugs.winehq.org/show_bug.cgi?id=30589

--- Comment #2 from Hans Leidekker  2012-05-04 03:45:50 CDT ---
There's a custom action that opens a log file in shared read mode without
closing the handle. Later on, after the custom action thread has finished,
another thread tries to open this file for writing and fails because of
the sharing mode.

We might have a bug that prevents the custom action from closing the handle
but I don't see any evidence for it.

Another explanation is that native runs custom actions in a separate
process, which means that any open file handles are automatically closed
when the custom action finishes. That would make this is a duplicate of
bug 18070.