$ git clone -n https://src.fedoraproject.org/rpms/grip.git /var/lib/mock/f39-build-2447207-61041/root/chroot_tmpdir/scmroot/grip
Cloning into '/var/lib/mock/f39-build-2447207-61041/root/chroot_tmpdir/scmroot/grip'...
$ git fetch origin abff3a87c5d8b7c6faa1117673c4999f1a3e6837:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grip
 * [new ref]         abff3a87c5d8b7c6faa1117673c4999f1a3e6837 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at abff3a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild