$ git clone -n https://src.fedoraproject.org/rpms/kblocks.git /var/lib/mock/f39-build-2032297-47670/root/chroot_tmpdir/scmroot/kblocks
Cloning into '/var/lib/mock/f39-build-2032297-47670/root/chroot_tmpdir/scmroot/kblocks'...
$ git fetch origin 697161c2cd3466c7dd772fc2f6bf6319204f907b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kblocks
 * [new ref]         697161c2cd3466c7dd772fc2f6bf6319204f907b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 697161c Update to 23.08.4