Crash in there while accessing an evidently deleted DAVResourceAccess
instance with about 4 other threads also in various webdav_ucp::Content
methods.
The problem is apparently that the "outer" getResourceType() passes the
m_xResAccess to the "inner" getResourceType(), which accesses it
without locking the mutex, while another thread resets m_xResAccess
and thereby deletes the current instance.
(regression from 0c3500115c)
Change-Id: I1c67021c536e303d766c7ff93fb71e40f991f3af
Michael Stahl
49a454225e