This is done in mat2 and not in libmat2 to make the implementation as simple as possible.
Step 1. Fetch and check out the branch for this merge request
git fetch origin git checkout -b inplace_cleaning origin/inplace_cleaning
Step 2. Review the changes locally
Step 3. Merge the branch and fix any conflicts that come up
git fetch origin git checkout origin/master git merge --no-ff inplace_cleaning
Step 4. Push the result of the merge to GitLab
git push origin master
Note that pushing to GitLab requires write access to this repository.
Tip: You can also checkout merge requests locally by following these guidelines.