因此，使用Subversion mirror（SubGit）和最新的BitBucket（4.8.3）。对母版进行了两项更改。一种是直接制作的，另一种是通过要素分支的合并制作的。推送更改时，出现SubGit错误：
XC2T@B104315 MINGW64 /c/projects/repos/loct-demo (master)
$ git push
Total 0 (delta 0), reused 0 (delta 0)
remote: error: The following ref update is disallowed:
remote: error: refs/heads/master: leads to replacement of SVN branch 'trunk'
remote: error:
remote: error: You can allow branch replacements by setting svn.allowBranchReplacement = true in SubGit configuration file.
remote: Fetching revisions from SVN repository:
remote: up to date
remote: Sending commits to SVN repository:
To http://XC2T@localhost:7990/scm/loct/loct-demo.git
! [remote rejected] master -> master (pre-receive hook declined) …