[http-client] Reset base if an http scheme is detected

http-client/src/main/java/io/avaje/http/client/DUrlBuilder.java

@@ -15,13 +15,21 @@ final class DUrlBuilder implements UrlBuilder {
 
   @Override
   public UrlBuilder url(String url) {
-    buffer.delete(0, buffer.length());
+
+    if (url.startsWith("http") && url.contains("://")) {
+      buffer.setLength(0);
+    }
+
     buffer.append(url);
     return this;
   }
 
   @Override
   public UrlBuilder path(String path) {
+    if (path.startsWith("http") && path.contains("://")) {
+      buffer.setLength(0);
+      return this;
+    }
     buffer.append("/").append(path);
     return this;
   }

http-generator-client/src/test/java/io/avaje/http/generator/client/clients/Titan.java

@@ -0,0 +1,3 @@
+package io.avaje.http.generator.client.clients;
+
+public class Titan {}

http-generator-client/src/test/java/io/avaje/http/generator/client/clients/TitanFall.java

@@ -0,0 +1,11 @@
+package io.avaje.http.generator.client.clients;
+
+import io.avaje.http.api.Client;
+import io.avaje.http.api.Get;
+
+@Client
+public interface TitanFall {
+
+  @Get("/${titan}/${drop.point}")
+  Titan titanfall();
+}