Don't override the default tasks in ForceDependencyResolutionPlugin

Author: bigdaz

plugin-test/src/test/groovy/org/gradle/github/dependencygraph/BaseExtractorTest.groovy

@@ -80,6 +80,10 @@ abstract class BaseExtractorTest extends Specification {
         return getTestDirectory().file(path)
     }
 
+    protected BuildResult run() {
+        return run("GitHubDependencyGraphPlugin_generateDependencyGraph")
+    }
+
     protected BuildResult run(String... names) {
         executer.withTasks(names)
         result = getExecuter().run()

plugin/src/main/kotlin/org/gradle/github/dependencygraph/ForceDependencyResolutionPlugin.kt

@@ -12,7 +12,6 @@ class ForceDependencyResolutionPlugin : Plugin<Gradle> {
     override fun apply(gradle: Gradle) {
         gradle.projectsEvaluated {
             val resolveAllDeps = gradle.rootProject.tasks.register(GENERATE_TASK)
-            gradle.rootProject.defaultTasks = listOf(GENERATE_TASK)
 
             // Depend on "dependencies" task in all projects
             gradle.allprojects { project ->