$ git clone -n https://src.fedoraproject.org/rpms/python-nbclient.git /var/lib/mock/f38-build-side-42-init-devel-695909-26990/root/chroot_tmpdir/scmroot/python-nbclient
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-695909-26990/root/chroot_tmpdir/scmroot/python-nbclient'...
$ git fetch origin cb362b46b5671ce3f55d487a3b3095b5c5a8b107:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-nbclient
 * [new ref]         cb362b46b5671ce3f55d487a3b3095b5c5a8b107 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb362b4 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild