$ git clone -n https://src.fedoraproject.org/rpms/ghc-extra.git /var/lib/mock/f40-build-742940-110991/root/chroot_tmpdir/scmroot/ghc-extra
Cloning into '/var/lib/mock/f40-build-742940-110991/root/chroot_tmpdir/scmroot/ghc-extra'...
$ git reset --hard e87011049e0d20237c346e27df00711558c419d2
HEAD is now at e870110 https://hackage.haskell.org/package/extra-1.7.14/changelog