$ git clone -n https://src.fedoraproject.org/rpms/ghc-RSA.git /var/lib/mock/f40-build-777019-129183/root/chroot_tmpdir/scmroot/ghc-RSA
Cloning into '/var/lib/mock/f40-build-777019-129183/root/chroot_tmpdir/scmroot/ghc-RSA'...
$ git fetch origin 8d51c58a780c5543b033f6fdbbfc63239453c7a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-RSA
 * [new ref]         8d51c58a780c5543b033f6fdbbfc63239453c7a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d51c58 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild