Composer revert after making changes

Question

I am using composer to manage dependencies in a Drupal project. Some modules I have are in mercurial repositories. Once I do composer install I am able to download my Drupal modules from their respective mercurial repositories. The composer.lock file also gets generated correctly.

Now let's say I make changes in one of the repositories. After that, if I run composer install, I expect the changes to get reverted, so that the repository goes back to the revision stored in composer.lock.

But that does not happen. The changes I have made persist. Am I missing something? Is this because am using a mercurial repository?

Answer 1

If I understand this correctly, you change something in your vendor/project and you want to revert there changes, right? If so, I usually remove vendor/project directory and install package again.