$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-ecmascript.git /var/lib/mock/f31-build-111961-34236/root/chroot_tmpdir/scmroot/ghc-language-ecmascript
Cloning into '/var/lib/mock/f31-build-111961-34236/root/chroot_tmpdir/scmroot/ghc-language-ecmascript'...
$ git reset --hard e1937a7b20ccd4469189967ef948b7e8d8e0b49f
HEAD is now at e1937a7 BR prof for lib and static for executable