Clear the gid flags before processing them

Also read the gids as unsigned integers since that's how Tiled writes them
to prevent the number going negative when the highest flag is used.

Reviewed-by: Yohann Ferreira

1 files changed, 1 insertions, 1 deletions

diff --git a/src/utils/xml.cpp b/src/utils/xml.cpp
index 5d579dd..91ebb44 100644
--- a/src/utils/xml.cpp
+++ b/src/utils/xml.cpp
@@ -97,7 +97,7 @@ namespace XML
         xmlChar *prop = xmlGetProp(node, BAD_CAST name);
         if (prop)
         {
-            ret = atoi((char*) prop);
+            ret = atol((char*) prop);
             xmlFree(prop);
         }