While uploading attachment in pulse , pega calls a OOTB final activity pxUploadFile of @baseclass. In that activity its truncating filename to 61 character due to which if user is uploading file which has long name then file name is getting truncated while uploading and also while downloading file its downloaded as truncated name. As per business requirement user don't want file name to be truncated in pega pulse . So is there a reason why file name is truncated  to 61 cha in pxUploadFile activity?