Fix uninitialized last_old_id

Closes #3817

git-svn-id: http://svn.osgeo.org/postgis/trunk@15583 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/liblwgeom/lwunionfind.c b/liblwgeom/lwunionfind.c
index 2657ff9926d291d1c61f3cec30dc0a3cdfb8b78f..e30b625daca3cd3c05d052d59f00b282f513217c 100644 (file)
--- a/liblwgeom/lwunionfind.c
+++ b/liblwgeom/lwunionfind.c
@@ -149,7 +149,7 @@ UF_get_collapsed_cluster_ids(UNIONFIND* uf, const char* is_in_cluster)
        uint32_t last_old_id, current_new_id, i;
        char encountered_cluster = LW_FALSE;
 
-       current_new_id = 0;
+       current_new_id = 0; last_old_id = 0;
        for (i = 0; i < uf->N; i++)
        {
                uint32_t j = ordered_components[i];