fix: Underline subparam reset (4:0) removes all underline styles

Author: Muscraft

crates/anstyle-svg/src/adapter.rs

@@ -275,8 +275,15 @@ impl anstyle_parse::Perform for AnsiCapture {
                         }
                     },
                     (CsiState::Underline, 0) => {
-                        style =
-                            style.effects(style.get_effects().remove(anstyle::Effects::UNDERLINE));
+                        style = style.effects(
+                            style
+                                .get_effects()
+                                .remove(anstyle::Effects::UNDERLINE)
+                                .remove(anstyle::Effects::DOUBLE_UNDERLINE)
+                                .remove(anstyle::Effects::CURLY_UNDERLINE)
+                                .remove(anstyle::Effects::DOTTED_UNDERLINE)
+                                .remove(anstyle::Effects::DASHED_UNDERLINE),
+                        );
                     }
                     (CsiState::Underline, 1) => {
                         // underline already set

crates/anstyle-svg/tests/underline_subparams.html

@@ -27,10 +27,10 @@
 
   <div class="container fg">
 <span class="underline">underline</span><span> normal</span><br />
-<span class="double-underline">double normal</span><br />
-<span class="double-underline curly-underline">curly normal</span><br />
-<span class="double-underline curly-underline dotted-underline">dotted normal</span><br />
-<span class="double-underline curly-underline dotted-underline dashed-underline">dashed normal</span><br />
+<span class="double-underline">double</span><span> normal</span><br />
+<span class="curly-underline">curly</span><span> normal</span><br />
+<span class="dotted-underline">dotted</span><span> normal</span><br />
+<span class="dashed-underline">dashed</span><span> normal</span><br />
 <br />
   </div>