$ git clone -n https://src.fedoraproject.org/rpms/embree3.git /var/lib/mock/f39-build-2026846-47170/root/chroot_tmpdir/scmroot/embree3
Cloning into '/var/lib/mock/f39-build-2026846-47170/root/chroot_tmpdir/scmroot/embree3'...
$ git fetch origin 440a65156cac29e3cae332a33f1665d45989571a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/embree3
 * [new ref]         440a65156cac29e3cae332a33f1665d45989571a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 440a651 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild