$ git clone -n https://src.fedoraproject.org/rpms/ghc-gi-cairo.git /var/lib/mock/f41-build-side-1-2805277-32863/root/chroot_tmpdir/scmroot/ghc-gi-cairo
Cloning into '/var/lib/mock/f41-build-side-1-2805277-32863/root/chroot_tmpdir/scmroot/ghc-gi-cairo'...
$ git fetch origin 05de9525cf5707fa2309f1d3f58e5891951c5ac3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-gi-cairo
 * [new ref]         05de9525cf5707fa2309f1d3f58e5891951c5ac3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05de952 https://hackage.haskell.org/package/gi-cairo-1.0.30/changelog