Treat any trailing space as "a yet to be finished command" instead of a maybe valid argument

build.gradle

@@ -3,7 +3,7 @@ import groovy.io.FileType
 apply plugin: 'java-library'
 apply plugin: 'maven'
 
-version = '0.1.2'
+version = '0.1.3'
 group = 'com.mojang'
 
 task wrapper(type: Wrapper) {

src/main/java/com/mojang/brigadier/CommandDispatcher.java

@@ -152,10 +152,8 @@ public class CommandDispatcher<S> {
             }
 
             context.withCommand(child.getCommand());
-            if (reader.canRead()) {
             if (reader.canRead(2)) {
                 reader.skip();
-                }
                 if (child.getRedirect() != null) {
                     final CommandContextBuilder<S> childContext = new CommandContextBuilder<>(this, source, reader.getCursor());
                     childContext.withNode(child.getRedirect(), new StringRange(reader.getCursor(), reader.getCursor()));

src/test/java/com/mojang/brigadier/CommandDispatcherTest.java

@@ -175,7 +175,7 @@ public class CommandDispatcherTest {
 
     @SuppressWarnings("unchecked")
     @Test
-    public void testParseIncomplete() throws Exception {
+    public void testParseIncompleteLiteral() throws Exception {
         subject.register(literal("foo").then(literal("bar").executes(command)));
 
         final ParseResults<Object> parse = subject.parse("foo ", source);
@@ -183,6 +183,16 @@ public class CommandDispatcherTest {
         assertThat(parse.getContext().getNodes().size(), is(1));
     }
 
+    @SuppressWarnings("unchecked")
+    @Test
+    public void testParseIncompleteArgument() throws Exception {
+        subject.register(literal("foo").then(argument("bar", integer()).executes(command)));
+
+        final ParseResults<Object> parse = subject.parse("foo ", source);
+        assertThat(parse.getReader().getRemaining(), equalTo(" "));
+        assertThat(parse.getContext().getNodes().size(), is(1));
+    }
+
     @SuppressWarnings("unchecked")
     @Test
     public void testExecuteAmbiguiousParentSubcommand() throws Exception {