Ensure that grequestx continuously make progress

Signed-off-by: Joseph Schuchart <[email protected]>
(cherry picked from commit 37e6bbb)

Author: devreal

ompi/request/grequestx.c

@@ -50,6 +50,7 @@ static int grequestx_progress(void) {
             }
             OPAL_THREAD_LOCK(&lock);
         }
+        in_progress = false;
     }
     OPAL_THREAD_UNLOCK(&lock);