$ git clone -n https://git.cclinux.org/stage/rpms/postfix.git /var/lib/mock/dist-circle8-build-43987-9280/root/chroot_tmpdir/scmroot/postfix
Cloning into '/var/lib/mock/dist-circle8-build-43987-9280/root/chroot_tmpdir/scmroot/postfix'...
$ git reset --hard c874ce784e85209e8abf1d84cdb57da750c1a40d
HEAD is now at c874ce7 import postfix-3.5.8-2.el8