Fix spacers in summary with folding.

The spacer was incorrectly being included in the previous fold.

src/renderer/html_handlebars/helpers/toc.rs

@@ -74,12 +74,6 @@ impl HelperDef for RenderToc {
         let mut is_first_chapter = ctx.data().get("is_index").is_some();
 
         for item in chapters {
-            // Spacer
-            if item.contains_key("spacer") {
-                out.write("<li class=\"spacer\"></li>")?;
-                continue;
-            }
-
             let (section, level) = if let Some(s) = item.get("section") {
                 (s.as_str(), s.matches('.').count())
             } else {
@@ -118,6 +112,12 @@ impl HelperDef for RenderToc {
                 }
             }
 
+            // Spacer
+            if item.contains_key("spacer") {
+                out.write("<li class=\"spacer\"></li>")?;
+                continue;
+            }
+
             // Part title
             if let Some(title) = item.get("part") {
                 out.write("<li class=\"part-title\">")?;