$ git clone -n https://src.fedoraproject.org/rpms/ghc-cairo.git /var/lib/mock/f40-build-743330-111187/root/chroot_tmpdir/scmroot/ghc-cairo
Cloning into '/var/lib/mock/f40-build-743330-111187/root/chroot_tmpdir/scmroot/ghc-cairo'...
$ git reset --hard b6d817367c3d93b63d0a489d16b443efc151df6d
HEAD is now at b6d8173 https://hackage.haskell.org/package/cairo-0.13.10.0/changelog