bug report: I was allowed to "git checkout -b" while mid-rebase
- From
- Grant Birchmeier <gbirchmeier@connamara.com>
- Date
- Jun 19, 2025, 00:12 UTC
- Message-ID
- <CAMq4opPBGT0Rv25DnEMHPjA=W_Ut2BDsN0KmxD2_xGTJa9erJQ@mail.gmail.com>
Hello. I've attached my git-bugreport, but I'll copy/paste the salient parts here. Thanks. Let me know if I can provide anything else.
*What did you do before the bug happened? (Steps to reproduce your issue)*
I was rebasing a branch "ilogger" on my master branch. While this rebase was still open, I accidentally ran `git checkout -b net5` (I meant to run it in a different console)... and it proceeded to switch me to the new branch even though the the rebase was still in progress.
*What did you expect to happen? (Expected behavior)*
I would expect an error message and a refusal to execute the `git checkout -b` command.
*What happened instead? (Actual behavior)*
It created a new branch "net5" off of my "ilogger" mid-rebase branch, and changed me to branch "net5". I cannot change back to "ilogger" ("error: you need to resolve your current index first"), and it appears I will need to finish my rebase on "net5". Even after I do that, I'm not sure what state "ilogger" will be in.
*What's different between what you expected and what actually happened?*
I think the proper bahavior is for the "git checkout -b" command to fail when the current branch is mid-rebase, just like it does when you run `git checkout` without the `-b`.
--
<https://www.connamara.com>
Grant Birchmeier
Director of Engineering, Connamara
gbirchmeier@connamara.com
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Thank you for filling out a Git bug report!
Please answer the following questions to help us understand your issue.
What did you do before the bug happened? (Steps to reproduce your issue)
I was rebasing a branch "ilogger" on my master branch. While this rebase was still open, I accidentally ran `git checkout -b net5` (I meant to run it in a different console)... and it proceeded to switch me to the new branch even though the the rebase was still in progress.
What did you expect to happen? (Expected behavior)
I would expect an error message and a refusal to execute the `git checkout -b` command.
What happened instead? (Actual behavior)
It created a new branch "net5" off of my "ilogger" mid-rebase branch, and changed me to branch "net5". I cannot change back to "ilogger" ("error: you need to resolve your current index first"), and it appears I will need to finish my rebase on "net5". Even after I do that, I'm not sure what state "ilogger" will be in.
What's different between what you expected and what actually happened?
I think the proper bahavior is for the "git checkout -b" command to fail when the current branch is mid-rebase, just like it does when you run `git checkout` without the `-b`.
Anything else you want to add:
(nothing)
Please review the rest of the bug report below.
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[System Info]
git version:
git version 2.45.0
cpu: x86_64
no commit associated with this build
sizeof-long: 8
sizeof-size_t: 8
shell-path: /bin/sh
feature: fsmonitor--daemon
uname: Darwin 24.5.0 Darwin Kernel Version 24.5.0: Tue Apr 22 19:53:26 PDT 2025; root:xnu-11417.121.6~2/RELEASE_X86_64 x86_64
compiler info: clang: 15.0.0 (clang-1500.3.9.4)
libc info: no libc information available
$SHELL (typically, interactive shell): /bin/bash
[Enabled Hooks]