fix crash. tests will follow

diff --git a/ext/tidy/tidy.c b/ext/tidy/tidy.c
index adfb4036b2d5886e13ff908f8eee422222dd1239..5c9f5052d37f8c30d5bea59e80d5293848bf70c3 100644 (file)
--- a/ext/tidy/tidy.c
+++ b/ext/tidy/tidy.c
@@ -1565,7 +1565,7 @@ static TIDY_NODE_METHOD(hasSiblings)
 {
        TIDY_FETCH_ONLY_OBJECT;
 
-       if (tidyGetNext(obj->node)) {
+       if (obj->node && tidyGetNext(obj->node)) {
                RETURN_TRUE;
        } else {
                RETURN_FALSE;