oc: Set right container in dbFolder when moving a folder

The path attribute from SOGoCacheGCSFolder is properly updated
in the database but not when returning from path message as
the container is the old one.

SoObjects/SOGo/SOGoCacheGCSFolder.h

@@ -49,6 +49,8 @@
              andSortOrderings: (NSArray *) sortOrderings;
 
 - (void) changePathTo: (NSString *) newPath;
+- (void) changePathTo: (NSString *) newPath
+     intoNewContainer: (id) newContainer;
 
 @end
 

SoObjects/SOGo/SOGoCacheGCSFolder.m

@@ -308,6 +308,14 @@ Class SOGoCacheGCSObjectK = Nil;
   [super changePathTo: newPath];
 }
 
+- (void) changePathTo: (NSString *) newPath intoNewContainer: (id) newContainer
+{
+  [self changePathTo: newPath];
+  container = newContainer;
+  if ([self doesRetainContainer])
+    [container retain];
+}
+
 // - (NSArray *) toOneRelationshipKeysMatchingQualifier: (EOQualifier *) qualifier
 //                                     andSortOrderings: (NSArray *) sortOrderings
 // {

SoObjects/SOGo/SOGoObject.h

@@ -82,6 +82,8 @@
 
 - (BOOL) isInPublicZone;
 
+- (BOOL) doesRetainContainer;
+
 /* accessors */
 
 - (void) setContext: (WOContext *) newContext;