$ git clone -n https://github.com/xcp-ng-rpms/systemd.git /var/lib/mock/v7.99-base-494-236/root/chroot_tmpdir/scmroot/systemd
Cloning into '/var/lib/mock/v7.99-base-494-236/root/chroot_tmpdir/scmroot/systemd'...
$ git reset --hard c28972ae8745af892115eae651f81fb9365ea25e
Downloading SOURCES/systemd-219.tar.xz (3.9 MB)
HEAD is now at c28972a Add %dist