I beleive that in feature-branch workflow it is totally okay to rewrite history of the branch before merging it into master. The only case when it is obviously

I beleive that in feature-branch workflow it is totally okay to rewrite history of the branch before merging it into master. The only case when it is obviously wrong is when several engineers are working on the same feature branch, which is against all methodologies known to me (except the duration of code review, when reviewers may pull the branch to run tests or use IDE on it). Having atomic semantic idiomatic changes in history beats short term branch immutability with one hand tied.