Fix sources for dependencies in the deobfCompile and deobfProvided configuration not getting downloaded and remapped

Author: Texasjake95

src/main/java/net/minecraftforge/gradle/user/UserBasePlugin.java

@@ -611,12 +611,19 @@ private void remapDeps(Project project, Configuration config, String resolvedCon
 
                 int taskId = 0;
 
+                // FOR SOURCES!
+
+                HashMap<ComponentIdentifier, ModuleVersionIdentifier> idMap = Maps.newHashMap();
+                
                 // FOR BINARIES
 
                 for (ResolvedArtifact artifact : config.getResolvedConfiguration().getResolvedArtifacts())
                 {
                     ModuleVersionIdentifier module = artifact.getModuleVersion().getId();
                     String group = "deobf." + module.getGroup();
+                    
+                    // Add artifacts that will be remapped to get their sources
+                    idMap.put(artifact.getId().getComponentIdentifier(), module);
 
                     TaskSingleDeobfBin deobf = makeTask(config.getName() + "DeobfDepTask" + (taskId++), TaskSingleDeobfBin.class);
                     deobf.setInJar(artifact.getFile());
@@ -629,10 +636,6 @@ private void remapDeps(Project project, Configuration config, String resolvedCon
                     project.getDependencies().add(resolvedConfig, group + ":" + module.getName() + ":" + module.getVersion());
                 }
 
-                // FOR SOURCES!
-
-                HashMap<ComponentIdentifier, ModuleVersionIdentifier> idMap = Maps.newHashMap();
-
                 for (DependencyResult depResult : config.getIncoming().getResolutionResult().getAllDependencies())
                 {
                     idMap.put(depResult.getFrom().getId(), depResult.getFrom().getModuleVersion());