handle revoke followed immediately by a sign request

src/util/secmod_common.c

@@ -232,7 +232,10 @@ TES_read_work (void *cls,
   size_t off = 0;
   uint16_t msize;
   const struct GNUNET_MessageHeader *hdr;
+  enum GNUNET_GenericReturnValue ret;
 
+  while (1)
+  {
     do
     {
       ssize_t recv_size;
@@ -282,13 +285,16 @@ TES_read_work (void *cls,
       }
     } while (off < msize);
 
-  if (off > msize)
+    ret = dispatch (client,
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return dispatch (client,
                     hdr);
+    if ( (GNUNET_OK != ret) ||
+         (off == msize) )
+      return ret;
+    memmove (buf,
+             &buf[msize],
+             off - msize);
+    off -= msize;
+  }
 }