$ git clone -n https://src.fedoraproject.org/rpms/libva-vdpau-driver.git /var/lib/mock/f39-build-1460220-33192/root/chroot_tmpdir/scmroot/libva-vdpau-driver
Cloning into '/var/lib/mock/f39-build-1460220-33192/root/chroot_tmpdir/scmroot/libva-vdpau-driver'...
$ git fetch origin a9492f121c9f4269059a854722206b3cc617d7a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libva-vdpau-driver
 * [new ref]         a9492f121c9f4269059a854722206b3cc617d7a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9492f1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild