Fixed segfault with filter_finalize introduced in r4621 (1.3.0).

Example configuration to reproduce:

    location /image/ {
        error_page 415 = /zero;
        image_filter crop 100 100;
        proxy_pass http://127.0.0.1:8080;
        proxy_store on;
    }

    location /zero {
        return 204;
    }

The problem appeared if upstream returned (big enough) non-image file,
causing 415 to be generated by image filter.
1 file changed
tree: a3f55788909eb40465539e896aabf1157d6a3c08
  1. auto/
  2. conf/
  3. contrib/
  4. docs/
  5. misc/
  6. src/
  7. .hgtags