Fix pipeline linting nf-core component behaviour

CHANGELOG.md

@@ -12,8 +12,9 @@
 
 - Add linting for ifEmpty(null) ([#3411](https://github.com/nf-core/tools/pull/3411))
 - Fix arbitrarily nested params schema linting ([#3443](https://github.com/nf-core/tools/pull/3443))
-- fix: linting with comments after the input directive ([#3458](https://github.com/nf-core/tools/pull/3458))
+- Fix: linting with comments after the input directive ([#3458](https://github.com/nf-core/tools/pull/3458))
 - EDAM ontology fixes ([#3460](https://github.com/nf-core/tools/pull/3460))
+- Fix default linting of nf-core components when `nf-core pipelines lint` is ran ([#3480](https://github.com/nf-core/tools/pull/3480))
 
 ### Modules
 

nf_core/pipelines/lint/__init__.py

@@ -599,7 +599,11 @@ def run_linting(
     lint_obj._load_lint_config()
     lint_obj.load_pipeline_config()
 
-    if lint_obj.lint_config and not lint_obj.lint_config["nfcore_components"]:
+    if (
+        lint_obj.lint_config
+        and lint_obj.lint_config["nfcore_components"] is not None
+        and not lint_obj.lint_config["nfcore_components"]
+    ):
         module_lint_obj = None
         subworkflow_lint_obj = None
     else: