$ git clone -n https://gitee.com/src-anolis-os/llvm15.git /var/lib/mock/dist-an23-build-235438-62762/root/chroot_tmpdir/scmroot/llvm15
Cloning into '/var/lib/mock/dist-an23-build-235438-62762/root/chroot_tmpdir/scmroot/llvm15'...
$ git reset --hard origin/a23
HEAD is now at 0b42fcc Branch llvm to llvm15 for upgrades