$ git clone -n https://src.fedoraproject.org/rpms/nbc.git /var/lib/mock/f40-build-763288-122459/root/chroot_tmpdir/scmroot/nbc
Cloning into '/var/lib/mock/f40-build-763288-122459/root/chroot_tmpdir/scmroot/nbc'...
$ git fetch origin d6e7bc62ea5ed5b42cfe997b24f870c5e25dd657:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nbc
 * [new ref]         d6e7bc62ea5ed5b42cfe997b24f870c5e25dd657 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d6e7bc6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild