$ git clone -n https://src.fedoraproject.org/rpms/ghc-extra.git /var/lib/mock/f40-build-776300-128749/root/chroot_tmpdir/scmroot/ghc-extra
Cloning into '/var/lib/mock/f40-build-776300-128749/root/chroot_tmpdir/scmroot/ghc-extra'...
$ git fetch origin 0789f7ea4df2dc959d821ad4364a64777673b89c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-extra
 * [new ref]         0789f7ea4df2dc959d821ad4364a64777673b89c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0789f7e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild