$ git clone -n https://src.fedoraproject.org/rpms/svt-vp9.git /var/lib/mock/f39-build-1662555-40667/root/chroot_tmpdir/scmroot/svt-vp9
Cloning into '/var/lib/mock/f39-build-1662555-40667/root/chroot_tmpdir/scmroot/svt-vp9'...
$ git fetch origin 34fc9760c8463ad91fb16072dc6b01b46b081c24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/svt-vp9
 * [new ref]         34fc9760c8463ad91fb16072dc6b01b46b081c24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34fc976 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild