diff --git a/db b/db
index 8f17bdd..fc596a2 100755
--- a/db
+++ b/db
@@ -35,7 +35,8 @@ case ${1:-} in
             -e POSTGRES_USER=osm \
             -e POSTGRES_PASSWORD=osm \
             --name "$name" \
-            postgis/postgis:13-3.1-alpine
+            postgis/postgis:13-3.1-alpine \
+                -c log_statement=all
         _wait_for_postgres
         ;;
     stop)
diff --git a/wm.sql b/wm.sql
index 2f1873c..048bad4 100644
--- a/wm.sql
+++ b/wm.sql
@@ -311,6 +311,7 @@ declare
   i integer;
   line geometry;
   lines geometry[];
+  bend geometry;
   bends geometry[];
   mutated boolean;
   l_type text;
@@ -324,15 +325,18 @@ begin
     raise 'Unsupported geometry type %', l_type;
   end if;
 
+
   i = 1;
-  mutated = true;
   foreach line in array lines loop
+    mutated = true;
     while mutated loop
       execute format('create table if not exists integ_%safigures (way geometry)', i);
       -- if anyone has suggestions how to insert a variable to a table without
       -- such hackery, I'll be glad to know
       execute format('insert into integ_%safigures select $1;', i) using (select unnest(array[line]));
+      raise notice 'inserting: %', st_astext(unnest(array[line]));
       bends = detect_bends(line);
+
       execute format('create table if not exists integ_%sbbends (i bigint, way geometry)', i);
       execute format('insert into integ_%sbbends (i, way) select generate_subscripts($1, 1), unnest($1)', i) using bends;
       bends = fix_gentle_inflections(bends);
@@ -342,8 +346,8 @@ begin
       execute format('create table if not exists integ_%sdselfcrossing (i bigint, way geometry)', i);
       execute format('insert into integ_%sdselfcrossing (i, way) select generate_subscripts($1, 1), unnest($1)', i) using bends;
       line = st_linemerge(st_union(bends));
-      i = i + 1;
     end loop;
+    i = i + 1;
   end loop;
 
   if l_type = 'ST_LineString' then