Merge commit 'b4811a7' into bfgminer

driver-stratum.c

@@ -791,6 +791,7 @@ const char *stratumsrv_init_diff(struct cgpu_info * const proc, const char * con
 	if (nv <= minimum_pdiff)
 		nv = minimum_pdiff;
 	conn->desired_share_pdiff = nv;
+	conn->desired_default_share_pdiff = false;
 	
 	return NULL;
 }