$ git clone -n https://src.fedoraproject.org/rpms/ghc-snap-core.git /var/lib/mock/f40-build-777140-129247/root/chroot_tmpdir/scmroot/ghc-snap-core
Cloning into '/var/lib/mock/f40-build-777140-129247/root/chroot_tmpdir/scmroot/ghc-snap-core'...
$ git fetch origin 0857b77426c009024e71a0c5a640dd08db614fc0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-snap-core
 * [new ref]         0857b77426c009024e71a0c5a640dd08db614fc0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0857b77 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild