How do I undo a push now that my repo is over 2gb?

[Lee Legg]

I'm working on an Unreal Engine project.  I recently made a commit, and when I pushed the commit I received an error that I was over the 2GB limit.  How can I remove those files that were uploaded, but still keep the commit?  I don't want to lose the work that I've done up till now.

And then my next, obvious, question is, how do I avoid hitting that limit again?  I often get the warning message asking if I want to upload files over 10mb, which I didn't think was an issue.  But over time it adds up.  I understand there is something called LFS, and it's supposed to be enabled from Sourcetree by default.  Is it just not working for me? Edit: I just looked at my settings in BitBucket, and it says I have no Git LFS files in my repo.  I guess it wasn't working all along.

Thanks for the help.