$ git clone -n https://src.fedoraproject.org/rpms/dnstracer.git /var/lib/mock/f40-build-793175-138798/root/chroot_tmpdir/scmroot/dnstracer
Cloning into '/var/lib/mock/f40-build-793175-138798/root/chroot_tmpdir/scmroot/dnstracer'...
$ git fetch origin cb0e0bd479070387e4a2d435ecd8a205790c4471:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnstracer
 * [new ref]         cb0e0bd479070387e4a2d435ecd8a205790c4471 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb0e0bd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild