$ git clone -n https://src.fedoraproject.org/rpms/ghc-old-time.git /var/lib/mock/f40-build-777468-129377/root/chroot_tmpdir/scmroot/ghc-old-time
Cloning into '/var/lib/mock/f40-build-777468-129377/root/chroot_tmpdir/scmroot/ghc-old-time'...
$ git fetch origin 2e80611cbf91267d402b56a1037479cbbcaa60b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-old-time
 * [new ref]         2e80611cbf91267d402b56a1037479cbbcaa60b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2e80611 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild