$ git clone -n https://src.fedoraproject.org/rpms/nats-server.git /var/lib/mock/f40-build-2317675-58170/root/chroot_tmpdir/scmroot/nats-server
Cloning into '/var/lib/mock/f40-build-2317675-58170/root/chroot_tmpdir/scmroot/nats-server'...
$ git fetch origin c2da1a43f73cff7c7f59cbec289981ac8d94b27f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nats-server
 * [new ref]         c2da1a43f73cff7c7f59cbec289981ac8d94b27f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2da1a4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild