Bug

- Fixed nasty bug whereby TF2::clear wiped the file names (pending.data etc) and
  so any subsequent TDB2::commit never even opened the file.  Yikes.

src/TDB2.cpp

@@ -410,7 +410,9 @@ void TF2::clear ()
   _loaded_contents = false;
 
   _contents        = "";
-  _file._data      = "";
+
+  // Note that the actual file name is deliberately not cleared.
+  //_file._data      = "";
 
   _tasks.clear ();
   _added_tasks.clear ();
@@ -474,16 +476,6 @@ const std::string TF2::dump ()
   return std::string (buffer);
 }
 
-////////////////////////////////////////////////////////////////////////////////
-
-
-
-
-
-
-
-
-
 ////////////////////////////////////////////////////////////////////////////////
 TDB2::TDB2 ()
 : _location ("")
@@ -492,8 +484,8 @@ TDB2::TDB2 ()
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-// Deliberately no file writes on destruct.  TDB2::commit should have been
+// Deliberately no file writes on destruct.  Commit should have been already
-// already called, if data is to be preserved.
+// called, if data is to be preserved.
 TDB2::~TDB2 ()
 {
 }