$ git clone -n https://src.fedoraproject.org/rpms/pack.git /var/lib/mock/f40-build-2704234-70924/root/chroot_tmpdir/scmroot/pack
Cloning into '/var/lib/mock/f40-build-2704234-70924/root/chroot_tmpdir/scmroot/pack'...
$ git fetch origin 91da2ba20b06037676344ab0838ea58d9bb734fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pack
 * [new ref]         91da2ba20b06037676344ab0838ea58d9bb734fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91da2ba Rebuild for golang 1.22.0