$ git clone -n https://src.fedoraproject.org/rpms/ghc-base-prelude.git /var/lib/mock/f42-build-877469-180226/root/chroot_tmpdir/scmroot/ghc-base-prelude
Cloning into '/var/lib/mock/f42-build-877469-180226/root/chroot_tmpdir/scmroot/ghc-base-prelude'...
$ git fetch origin 96aa4063ef5e0e727e7808aa9a618196ed5795d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-base-prelude
 * [new ref]         96aa4063ef5e0e727e7808aa9a618196ed5795d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96aa406 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild