What steps will reproduce the problem?

I have a method where I fetch GDataFeedBase entries and return these as an 
array to another function

NSMutableArray *tempFeedArray = [NSMutableArray array]; 
NSURL *feedURL = [[NSURL alloc] initWithString:escapedUrlString];
NSData *data = [NSData dataWithContentsOfURL:feedURL];
GDataFeedBase *feedBase = [[GDataFeedBase alloc] initWithData:data];
[tempFeedArray addObjectsFromArray:[feedBase entries]];
[feedURL release];
[feedBase release];
return tempFeedArray;

.....

I have another function where I retrieve required values from tempFeedArray 
object that is GDataEntryYouTubeVideo

  for(int count  = 0; count < loopCount; count ++){
        NSMutableDictionary *feedBaseEntryDict = [[NSMutableDictionary alloc] init];

        entry = [tempFeedArray objectAtIndex:count];


        youTubeUrl = [[entry alternateLink] href];


        if ([entry statistics]!= nil) {
            noOfVws= [[[entry statistics] viewCount] intValue];

        }

        duratn = [[[entry mediaGroup] duration] stringValue];
        descr = [[[entry mediaGroup] mediaDescription] stringValue];
        authorName = [[[entry authors] objectAtIndex:0] name];
        publishedDt = [[entry publishedDate] stringValue];
        rating = [[[entry rating] average] stringValue];
        imageURL = [[[[entry mediaGroup] mediaThumbnails] objectAtIndex:0] URLString];
        videoTitle = [[[entry mediaGroup] mediaTitle] stringValue];

  .....
 }



......


Check this link as well where users have reported of this issue:
http://markmail.org/message/6hfc43gcgl7hezu6#query%3amemory%20leak%20GDataXMLNod
e+page:1+mid:4ozoqkwthvf2mg5o+state%3aresults


What is the expected output? What do you see instead?

On using it for first time, leak doesn't occur. On subsequent calls, it starts 
leaking at GDataXMLNode stringFromXMLString

See attached screenshot.

What version of the product are you using? On what operating system?
I am using v1.9.1 gdata