$ git clone -n https://src.fedoraproject.org/rpms/libcgroup.git /var/lib/mock/f37-build-671133-75225/root/chroot_tmpdir/scmroot/libcgroup
Cloning into '/var/lib/mock/f37-build-671133-75225/root/chroot_tmpdir/scmroot/libcgroup'...
$ git reset --hard e623b7ca46bb88308b9a46a6ccac5d8bf9a44f6b
HEAD is now at e623b7c New upstream release 3.0 - resolves: #2115990