$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-cvec.git /var/lib/mock/f40-build-2278803-55286/root/chroot_tmpdir/scmroot/gap-pkg-cvec
Cloning into '/var/lib/mock/f40-build-2278803-55286/root/chroot_tmpdir/scmroot/gap-pkg-cvec'...
$ git fetch origin 319fb0ff0186595f243be7fcf95668f3077e0bf1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-cvec
 * [new ref]         319fb0ff0186595f243be7fcf95668f3077e0bf1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 319fb0f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild