improved check whether context given as a prop is a real ReactContext

Author: stefan.hausmann

src/components/connectAdvanced.js

@@ -213,9 +213,12 @@ export default function connectAdvanced(
       }
 
       render() {
-        const ContextToUse = this.props.context && this.props.context.Consumer
-          ? this.props.context
-          : Context
+        const ContextToUse =
+          this.props.context &&
+          this.props.context.Provider &&
+          this.props.context.Consumer
+            ? this.props.context
+            : Context
 
         return (
           <ContextToUse.Consumer>