From 9056fd29124c642772495f8a6cac2a03846b7e70 Mon Sep 17 00:00:00 2001
From: Sasha Joseph <sasha.joseph@gmail.com>
Date: Fri, 8 Jun 2018 18:00:58 -0700
Subject: [PATCH] tweak: do not collapse group properties to children if they
 contain filters.

---
 plugins/collapseGroups.js          |  2 +-
 test/plugins/collapseGroups.16.svg | 15 +++++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 test/plugins/collapseGroups.16.svg

diff --git a/plugins/collapseGroups.js b/plugins/collapseGroups.js
index 6e3865184..f1cb7c103 100644
--- a/plugins/collapseGroups.js
+++ b/plugins/collapseGroups.js
@@ -50,7 +50,7 @@ exports.fn = function(item) {
                 if (g.hasAttr() && g.content.length === 1) {
                     var inner = g.content[0];
 
-                    if (inner.isElem() && !inner.hasAttr('id') &&
+                    if (inner.isElem() && !inner.hasAttr('id') && !g.hasAttr('filter') &&
                         !(g.hasAttr('class') && inner.hasAttr('class')) && (
                             !g.hasAttr('clip-path') && !g.hasAttr('mask') ||
                             inner.isElem('g') && !g.hasAttr('transform') && !inner.hasAttr('transform')
diff --git a/test/plugins/collapseGroups.16.svg b/test/plugins/collapseGroups.16.svg
new file mode 100644
index 000000000..38944f9a6
--- /dev/null
+++ b/test/plugins/collapseGroups.16.svg
@@ -0,0 +1,15 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+    <g filter="url(#...)">
+        <g>
+            <path d="..."/>
+        </g>
+    </g>
+</svg>
+
+@@@
+
+<svg xmlns="http://www.w3.org/2000/svg">
+    <g filter="url(#...)">
+        <path d="..."/>
+    </g>
+</svg>