Either clone or pull, don't do both

Author: jablko

src/testRunner/externalCompileRunner.ts

@@ -57,9 +57,11 @@ abstract class ExternalCompileRunnerBase extends RunnerBase {
                     if (!fs.existsSync(submoduleDir)) {
                         exec("git", ["clone", config.cloneUrl, directoryName], { cwd });
                     }
-                    exec("git", ["reset", "HEAD", "--hard"], { cwd: submoduleDir });
-                    exec("git", ["clean", "-f"], { cwd: submoduleDir });
-                    exec("git", ["pull", "-f"], { cwd: submoduleDir });
+                    else {
+                        exec("git", ["reset", "HEAD", "--hard"], { cwd: submoduleDir });
+                        exec("git", ["clean", "-f"], { cwd: submoduleDir });
+                        exec("git", ["pull", "-f"], { cwd: submoduleDir });
+                    }
 
                     types = config.types;