$ git clone -n https://src.fedoraproject.org/rpms/ghc-scientific.git /var/lib/mock/f40-build-776324-128763/root/chroot_tmpdir/scmroot/ghc-scientific
Cloning into '/var/lib/mock/f40-build-776324-128763/root/chroot_tmpdir/scmroot/ghc-scientific'...
$ git fetch origin b4f406740c2dafe16a84e14c7972518b3e385ef0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-scientific
 * [new ref]         b4f406740c2dafe16a84e14c7972518b3e385ef0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4f4067 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild