[librsvg: 79/90] Oops, use the compositing affine when setting the mask

[Federico Mena Quintero <federico src gnome org>]

commit 5a250ae578f7b9f85d24cd9dbf03a851337b652f
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Mar 21 19:43:18 2019 -0600

    Oops, use the compositing affine when setting the mask
    
    This fixes 603550-mask-luminance.svg.
    
    763 pass, 3 fail

 rsvg_internals/src/mask.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/rsvg_internals/src/mask.rs b/rsvg_internals/src/mask.rs
index ce18c3f6..ad80e460 100644
--- a/rsvg_internals/src/mask.rs
+++ b/rsvg_internals/src/mask.rs
@@ -142,7 +142,7 @@ impl NodeMask {
         let mask_surface = compute_luminance_to_alpha(&mask_content_surface, opacity)?;
 
         let cr = draw_ctx.get_cairo_context();
-        cr.set_matrix(affines.initial);
+        cr.set_matrix(affines.compositing);
 
         cr.mask_surface(&mask_surface, 0.0, 0.0);