如何在PyCharm中临时切换至历史Commit版本运行项目且保留后续提交？

Absolutely—your plan is a perfect way to isolate whether the changes in commits 9-11 are causing the text alignment problem on Page Y. This approach won’t delete any of your recent commits, and it’s a standard workflow for debugging regressions. Here’s a step-by-step guide to do it safely:

Step 1: Ensure your working directory is clean #

Before checking out an older commit, make sure you don’t have any uncommitted changes (they could get lost or cause conflicts). Run this command to verify:

git status

If you see uncommitted files, stash them temporarily (you can restore them later):

git stash

Step 2: Checkout Commit 8 #

First, grab the unique hash for Commit 8. Run this to see a condensed list of your commits with short hashes:

git log --oneline

Look for the line corresponding to Commit 8 (it’ll be the entry right before Commit 9). Then checkout that commit using its hash (replace <commit-8-hash> with the actual value, like a1b2c3d):

git checkout <commit-8-hash>

You’ll see a message about being in "detached HEAD" state—this is totally normal for temporary checkouts. It just means you’re not on a named branch right now.

Step 3: Test Page Y #

Launch your web application and navigate to Page Y. If the text alignment is correct here, that confirms the issue was introduced between Commit 8 and Commit 9/10/11. If it’s still broken, the problem might have existed earlier, but based on your description, this should resolve it.

Step 4: Return to Commit 11 #

Once testing is done, switch back to your original branch (e.g., main or develop—use the branch name you were working on):

git checkout main

Or use this shortcut to jump back to the last branch you were on:

git switch -

If you stashed changes earlier, restore them with:

git stash pop

Bonus: Narrow down the exact problematic commit #

If you want to pinpoint which specific commit (9, 10, or 11) caused the issue, you can use git bisect—a tool that automates checking commits to find the regression point. But your initial approach is great for a quick confirmation first.

Just a quick note: Don’t make any commits while in detached HEAD state unless you create a new branch for them (since those commits won’t be linked to your main branch otherwise). For testing purposes, you don’t need to worry about this.

内容的提问来源于stack exchange，提问作者multigoodverse