$ git clone -n https://src.fedoraproject.org/rpms/ghc-yesod.git /var/lib/mock/f40-build-771484-125969/root/chroot_tmpdir/scmroot/ghc-yesod
Cloning into '/var/lib/mock/f40-build-771484-125969/root/chroot_tmpdir/scmroot/ghc-yesod'...
$ git reset --hard d20465f6af39d36093e63a70ce57bfd860142e1c
HEAD is now at d20465f bump release