Prevent false matching of the Inland AIS shape on unstructured Type 8s.

Also, add a regression  test for this.

1 files changed, 1 insertions, 1 deletions

diff --git a/ais_json.c b/ais_json.c
index 76f98966..4d31ba87 100644
--- a/ais_json.c
+++ b/ais_json.c
@@ -397,7 +397,7 @@ int json_ais_read(const char *buf,
 		structured = true;
 	    }
 	}
-	else if (strstr(buf, "\"dac\":200,") != NULL) {
+	else if (strstr(buf, "\"dac\":200,") != NULL && strstr(buf,"data")==NULL) {
 	    if (strstr(buf, "\"fid\":10,") != NULL) {
 		status = json_read_object(buf, json_ais8_fid10, endptr);
 		structured = true;