Fixed ReleaseView when displaying a release with no artist

approot/release.xml

@@ -14,7 +14,7 @@
 	${cover}
 	<div class="page-header">
 		<h2>${name}</h2>
-		<h4>${artist-name}</h4>
+		${<if-has-artist>}<h4>${artist-name}</h4>${</if-has-artist>}
 		<h4>${<if-has-year>}${year}${</if-has-year>}${<if-has-orig-year>} (${orig-year})${</if-has-orig-year>}</h4>
 		${clusters}
 		${play-btn}${add-btn}

src/ui/explore/ReleaseView.cpp

@@ -97,10 +97,12 @@ Release::refresh()
 		auto artists = release->getArtists();
 		if (artists.size() > 1)
 		{
+			t->setCondition("if-has-artist", true);
 			t->bindString("artist-name", Wt::WString::tr("Lms.Explore.various-artists"));
 		}
-		else
+		else if (artists.size() == 1)
 		{
+			t->setCondition("if-has-artist", true);
 			Wt::WAnchor *artistAnchor = LmsApplication::createArtistAnchor(artists.front().id());
 			Wt::WText *artist = new Wt::WText(artistAnchor);
 			artist->setText(Wt::WString::fromUTF8(artists.front()->getName(), Wt::PlainText));