storage/curl: follow redirects for collections without trailing slash

NEWS

@@ -2,6 +2,7 @@ ver 0.21.16 (not yet released)
 * storage
   - curl: request the "resourcetype" property to fix database update
   - curl: URL-encode more paths
+  - curl: follow redirects for collections without trailing slash
 * update
   - fix crash when music_directory is not a directory
 * fix build with iconv() instead of ICU

src/storage/plugins/CurlStorage.cxx

@@ -259,6 +259,8 @@ public:
 		 CommonExpatParser(ExpatNamespaceSeparator{'|'})
 	{
 		request.SetOption(CURLOPT_CUSTOMREQUEST, "PROPFIND");
+		request.SetOption(CURLOPT_FOLLOWLOCATION, 1l);
+		request.SetOption(CURLOPT_MAXREDIRS, 1l);
 
 		request_headers.Append(StringFormat<40>("depth: %u", depth));