$ git clone -n https://src.fedoraproject.org/rpms/ghc-text-icu.git /var/lib/mock/f41-build-837886-159471/root/chroot_tmpdir/scmroot/ghc-text-icu
Cloning into '/var/lib/mock/f41-build-837886-159471/root/chroot_tmpdir/scmroot/ghc-text-icu'...
$ git fetch origin d6ffb39b1e602c15db1e3c4567ac4a24933058cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-text-icu
 * [new ref]         d6ffb39b1e602c15db1e3c4567ac4a24933058cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6ffb39 https://hackage.haskell.org/package/text-icu-0.8.0.5/changelog