Comment for prosperity

Author: badeball

lib/add-cucumber-preprocessor-plugin.ts

@@ -431,6 +431,11 @@ export default async function addCucumberPreprocessorPlugin(
 
     const propertyName = "specPattern" in config ? "specPattern" : "testFiles";
 
+    /**
+     * The preprocessor needs the original value at a later point in order to determine the implicit
+     * integration folder correctly. Otherwise, scoping test files using tags would affect definition
+     * resolvement and yield surprising results.
+     */
     mutateConfigObjectPreservingly(
       config,
       propertyName as keyof ICypressConfiguration,