$ git clone -n https://src.fedoraproject.org/rpms/grepcidr.git /var/lib/mock/f40-build-2596448-62782/root/chroot_tmpdir/scmroot/grepcidr
Cloning into '/var/lib/mock/f40-build-2596448-62782/root/chroot_tmpdir/scmroot/grepcidr'...
$ git fetch origin 2624dd096e73011fbc3ee4d73764cf86cdf7dc93:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grepcidr
 * [new ref]         2624dd096e73011fbc3ee4d73764cf86cdf7dc93 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2624dd0 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild