$ git clone -n https://src.fedoraproject.org/rpms/exim.git /var/lib/mock/f31-build-107750-33725/root/chroot_tmpdir/scmroot/exim
Cloning into '/var/lib/mock/f31-build-107750-33725/root/chroot_tmpdir/scmroot/exim'...
$ git reset --hard 1464ae5f2b443a49e906fb631e84b77f22d0ecd3
HEAD is now at 1464ae5 New version   Resolves: CVE-2019-15846