Merge branch 'fix/Process.opinion_empty_execption' into 'wrdp'

Merge of fix/Process.opinion_empty_execption to wrdp

See merge request o2oa/o2oa!1162

(cherry picked from commit d2d1199828d69b21bd5399a55d3c3767e5b10512)

2cefcb84 修复提交的时候意见可能未被清空的问题

o2web/source/x_component_process_Xform/Form.js

@@ -899,7 +899,7 @@ MWF.xApplication.process.Xform.Form = MWF.APPForm = new Class({
                     this.saveOpinion(module);
 
                     var key = layout.desktop.session.user.id;
-                    if( typeOf( data[id] ) === "object" && data[id][key] ){
+                    if( typeOf( data[id] ) === "object" && typeOf(data[id][key])==="string" ){
                         delete data[id][key]
                     }
                     // delete data[id];