$ git clone -n https://src.fedoraproject.org/rpms/ghc-hakyll.git /var/lib/mock/f42-build-3251776-41222/root/chroot_tmpdir/scmroot/ghc-hakyll
Cloning into '/var/lib/mock/f42-build-3251776-41222/root/chroot_tmpdir/scmroot/ghc-hakyll'...
$ git fetch origin e704ac50d48730bcdd926c27633d17b434782c7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hakyll
 * [new ref]         e704ac50d48730bcdd926c27633d17b434782c7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e704ac5 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild