Yeah, I absolutely never run into this problem.

Sometimes we will have a huge stack of changes one of us is "finished but not clear to merge".

either:

- We just swap ownership of the branches and eng 2 now commits directly in branch 1. We review the final content together and typically pull in a 3rd person to review our combined work. Eng 1 either pairs with eng 2 until its finished or starts on a task that is decoupled from those changes.

- We use an integration branch that gets threated like the temporary master branch until the feature is ready to merge.