$ git clone -n https://src.fedoraproject.org/rpms/libvdpau.git /var/lib/mock/f39-build-1535750-36247/root/chroot_tmpdir/scmroot/libvdpau
Cloning into '/var/lib/mock/f39-build-1535750-36247/root/chroot_tmpdir/scmroot/libvdpau'...
$ git fetch origin 13153010257fe358d93968f0ca1be7d5565c61f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libvdpau
 * [new ref]         13153010257fe358d93968f0ca1be7d5565c61f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1315301 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild