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@@ -171,7 +171,7 @@ This should output (with different hashes):
 
 ### 4. Implement `crb/repo-merge` (see [API](#crbrepo-merge-src))
 
-Relevant commands are provided under the 'Is Ancestor' and 'Reference' slides.
+Relevant commands are provided under the 'Is Ancestor' and 'Reference' slides. Do not use the 'git pull' command to implement `crb/repo-merge` because it will automatically create a `main` branch that will break the [assumptions](#assumptions).
 
 #### Test