$ git clone -n https://gitee.com/mgb01105731/pdfbox.git /var/lib/mock/dist-an23-build-288371-64871/root/chroot_tmpdir/scmroot/pdfbox
Cloning into '/var/lib/mock/dist-an23-build-288371-64871/root/chroot_tmpdir/scmroot/pdfbox'...
$ git reset --hard origin/a23
HEAD is now at b779a2b init upstream from version 2.0.29
$ git lfs pull