$ git clone -n https://src.fedoraproject.org/rpms/cadvisor.git /var/lib/mock/f38-build-729747-101840/root/chroot_tmpdir/scmroot/cadvisor
Cloning into '/var/lib/mock/f38-build-729747-101840/root/chroot_tmpdir/scmroot/cadvisor'...
$ git fetch origin b77c06d18251ca43a3c561c23f9d587737b6c68f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cadvisor
 * [new ref]         b77c06d18251ca43a3c561c23f9d587737b6c68f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b77c06d Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild