Fix git_close/http_close/local_close to set the transport's connected attribute to 0.

src/transports/git.c

@@ -417,6 +417,8 @@ static int git_close(git_transport *transport)
 		return -1;
 	}
 
+	t->parent.connected = 0;
+
 #ifdef GIT_WIN32
 	WSACleanup();
 #endif

src/transports/http.c

@@ -610,6 +610,8 @@ static int http_close(git_transport *transport)
 		return -1;
 	}
 
+	t->parent.connected = 0;
+
 	return 0;
 }
 

src/transports/local.c

@@ -190,6 +190,7 @@ static int local_close(git_transport *transport)
 {
 	transport_local *t = (transport_local *)transport;
 
+	t->parent.connected = 0;
 	git_repository_free(t->repo);
 	t->repo = NULL;