使用bfg清除文件后无法推送到>2gb回购

我不小心把一些本应被忽略的大文件推送到git,结果我的repo超过了2gb。我试图用bfg清除一些文件,并且已经能够清除大约400mb的文件,但是当尝试推送时,我得到以下错误

Counting objects: 1510, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (621/621), done.
Writing objects: 100% (1510/1510), 373.84 MiB | 11.69 MiB/s, done.
Total 1510 (delta 879), reused 1403 (delta 778)
remote: Resolving deltas: 100% (879/879), completed with 95 local objects.
remote: repository is in read only mode (over 2 GB size limit).
remote:
remote: Learn how to reduce your repository size: https://confluence.atlassian.com/x/xgMvEw.
To https://bitbucket.org/HIDDEN/REPO.git
 ! [remote rejected]   feature/feature -> feature/wikitude (pre-receive hook declined)
error: failed to push some refs to 'https://bitbucket.org/HIDDEN/REPO.git'

我在网上读到,武力推动可以解决这个问题,但我觉得这可能有风险,我确实有一个后援 --mirror 在我和bfg删除文件之前。