[librsvg: 13/15] Merge.render() - make its arguments uniform with the rest of the primitives

[Federico Mena Quintero <federico src gnome org>]

commit db427bf617d06367a40335982b22d39bfb986e09
Author: Federico Mena Quintero <federico gnome org>
Date:   Thu Apr 8 17:20:40 2021 -0500

    Merge.render() - make its arguments uniform with the rest of the primitives

 src/filters/merge.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/filters/merge.rs b/src/filters/merge.rs
index bf0b4ef0..b8b49857 100644
--- a/src/filters/merge.rs
+++ b/src/filters/merge.rs
@@ -98,12 +98,13 @@ impl MergeNode {
 impl Merge {
     pub fn render(
         &self,
-        mut bounds_builder: BoundsBuilder,
+        bounds_builder: BoundsBuilder,
         ctx: &FilterContext,
         acquired_nodes: &mut AcquiredNodes<'_>,
         draw_ctx: &mut DrawingCtx,
     ) -> Result<FilterOutput, FilterError> {
         // Compute the filter bounds, taking each feMergeNode's input into account.
+        let mut bounds_builder = bounds_builder;
         for merge_node in &self.merge_nodes {
             let input = ctx.get_input(
                 acquired_nodes,