I made a simple test application - created a UITableView with 1000 rows and manually set its content offset:
- (void) viewWillAppear:(BOOL)animated{ [table reloadData]; [table setContentOffset:CGPointMake(0, 44*500) animated:NO];
Both with a table of the form of a line separator, and without it, it scrolls to the same position. Thus, it seems that the line separator does not affect the size of the contents of the table.
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