Pull request #1356: 无JIRA任务 bugfix

Merge in VISUAL/fineui from ~GUY/fineui:master to master

* commit '2af688766e98d5c71cacdd29c0e24d412efcc746':
  bugfix

src/core/inject.js

@@ -57,6 +57,7 @@
                 if (!providers[type]) {
                     providers[type] = new providerInjection[type]();
                 }
+                providerInstance[type] = null;
                 return configFn(providers[type]);
             }
             return BI.Plugin.configWidget(type, configFn);
@@ -74,6 +75,7 @@
                         if (!providers[type]) {
                             providers[type] = new providerInjection[type]();
                         }
+                        providerInstance[type] = null;
                         queue[i](providers[type]);
                         continue;
                     }