$ git clone -n https://src.fedoraproject.org/rpms/volume_key.git /var/lib/mock/f42-build-3286426-41416/root/chroot_tmpdir/scmroot/volume_key
Cloning into '/var/lib/mock/f42-build-3286426-41416/root/chroot_tmpdir/scmroot/volume_key'...
$ git fetch origin 02d462c1dac6472bdb396073d77efe34b0b3e723:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/volume_key
 * [new ref]         02d462c1dac6472bdb396073d77efe34b0b3e723 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 02d462c Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild