$ git clone -n https://src.fedoraproject.org/rpms/netmask.git /var/lib/mock/f31-build-57536-28361/root/thebuilddir/tmp/scmroot/netmask
Cloning into '/var/lib/mock/f31-build-57536-28361/root/thebuilddir/tmp/scmroot/netmask'...
$ git reset --hard 992c559d82cd36c1450401081b0a8b9afe75e71c
HEAD is now at 992c559 Security bugfix buffer overflow reported at upstream 2019-01-30; updated sources