I am obtaining a temporary folderitem by
GetTemporaryFolderitem(). Then I want to append an extension to the folderitem by
f.Name = f.Name + ".extension"
However, rather than changing the name, a duplicate with the extension gets created while the folderitem still points to the file without the extension. The weird thing is: It does not always happen but rather randomly. Calling my whole method again might work first and then stop working or the other way around. Bug?