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So I have a bug fix (green) and owner also made a bug fix (red) but I would like to rework both of them due to discussion we had. I have opened a PR and there is merge conflict that can't be resolved. Should I open a new branch in my fork and close PR or should I google some rebase magic to apply commits to my bug-fix branch.
If the merge is really too complicated to easily resolve, drop the PR. Then you can pull in latest and make the fix anew. Don't delete your old PR's branch yet, you might want to look up how you did your original fix.
Merge conflicts can always be resolved, just not automatically. You should learn how to resolve them.
The red commit made changes to files that after the merge would produce dead code.
Part of doing a merge commit at all is ensuring the merge results in clean code. You would need to resolve this in your merge commit, even if that area of the code was not in a merge conflict. You learn this when learning to resolve merge conflicts.
Yep, most merge conflicts that happen on less than 10 lines can be fixed manually. It's an invaluable skill.
I would merge 2.0 into my branch and fix (and test) the conflict there.
It depends - as with any real answer to a problem. I would likely start with a rebase of you bug-fix on 2.0, resolve any conflicts that might have. If there are multiple commits on bug-fix I might squash them to make the merge easier. But if the conflicts are too complex to really resolve it might be easier and quicker to just redo the work in a new branch if the changes are not that big.
Which was is better for you depends on how big those merge conflicts are. But it seems like a good opportunity to learn how to rebase and how to resolve merge conflicts.
I'd pull their main, rebase your 2.0 to theirs and then rebase your fix to your 2.0. Then you should have a better view on what has changed between those two. It'll probably result in you cherry picking from your fix.
Force merge your PR and call out their personal issues in the comments
there is merge conflict that can’t be resolved
Why? That's the main question.
Also https://trunkbaseddevelopment.com/branch-for-release/ says that you should:
owner also made a bug fix
That's a political issue, not a technical issue. You MUST talk with the owner about it.
Why?
merge resolution would produce more work than opening new PR (couple dozen of lines of code)[I want to learn on small mistakes not on big ones] I would like to rework the owners bug fix to have cleaner code.
Political issue
So I should make a consensus on „Who should make the work?” and „How should feature be implemented?”.
Sadly „2.0” is the trunk and „master” is 1.0 release but thanks for the link