$ git clone -n https://src.fedoraproject.org/rpms/ghc-hxt-unicode.git /var/lib/mock/f31-build-100309-33246/root/chroot_tmpdir/scmroot/ghc-hxt-unicode
Cloning into '/var/lib/mock/f31-build-100309-33246/root/chroot_tmpdir/scmroot/ghc-hxt-unicode'...
$ git reset --hard 4e29ebf57bc71b5923a9a432520e669d07927366
HEAD is now at 4e29ebf BR prof for lib and static for executable