$ git clone -n https://src.fedoraproject.org/rpms/ghc-hakyll.git /var/lib/mock/f41-build-840935-161038/root/chroot_tmpdir/scmroot/ghc-hakyll
Cloning into '/var/lib/mock/f41-build-840935-161038/root/chroot_tmpdir/scmroot/ghc-hakyll'...
$ git reset --hard 623c9ba38f6033645f837cf1365a3abfdc6b0b42
HEAD is now at 623c9ba https://hackage.haskell.org/package/hakyll-4.16.2.2/changelog