GhostPDF - fix memory leak

Seen with OSS-fuzz #42920, teh nullpage device and Ghostscript (not gpdf)

To gt the reference counting right we need to not count up 'currdict',
but we do need to NULL 'Parent' instead.

1 files changed, 1 insertions, 1 deletions

diff --git a/pdf/pdf_annot.c b/pdf/pdf_annot.c
index fe65803f3..a7a2c56ea 100644
--- a/pdf/pdf_annot.c
+++ b/pdf/pdf_annot.c
@@ -3698,7 +3698,7 @@ static int pdfi_annot_draw_Widget(pdf_context *ctx, pdf_dict *annot, pdf_obj *No
             }
             pdfi_countdown(currdict);
             currdict = Parent;
-            pdfi_countup(currdict);
+            Parent = NULL;
         } else
             break;
     }