修复前一个(PDF)衍生出来的问题

app/public/report/js/rpt_jsexcel.js

@@ -1343,7 +1343,8 @@ function _checkAndSetSignatureCache(pageData, signKeyArr, signPathArr, roleRel,
                                             rst = true;
                                             signSheetIdxArr[pageIdx] = true;
                                         }
-                                    } else if (role.sign_pic) {
+                                    } else if (role.sign_pic && role_rel.type !== '流程') {
+                                        // 非流程的sign_pic才需要这里处理
                                         const signPath = { signature_name: signatureCell.signature_name, path: null, pic: null };
                                         signPathArr.push(signPath);
                                         signPath.pic = role.sign_pic;