reset transforms

sparse_strips/vello_cpu/src/render.rs

diff --git a/sparse_strips/vello_cpu/src/render.rs b/sparse_strips/vello_cpu/src/render.rs
index 628a1e5..cb372ad 100644
--- a/sparse_strips/vello_cpu/src/render.rs
+++ b/sparse_strips/vello_cpu/src/render.rs
@@ -333,6 +333,8 @@
     pub fn reset(&mut self) {
         self.dispatcher.reset();
         self.encoded_paints.clear();
+        self.reset_transform();
+        self.reset_paint_transform();
     }
 
     /// Flush any pending operations.