$ git clone -n https://github.com/xcp-ng-rpms/systemd.git /var/lib/mock/v8.3-incoming-5375-8074/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/v8.3-incoming-5375-8074/root/chroot_tmpdir/scmroot/systemd'...
$ git reset --hard 059320c9fe6444a79153b5aeb2c4faa2ae8b4806
Downloading SOURCES/systemd-219.tar.gz (4.8 MB)
HEAD is now at 059320c Merge branch 'XS-8.3'