$ git clone -n https://src.fedoraproject.org/rpms/libva-v4l2-request.git /var/lib/mock/f39-build-1963062-43274/root/chroot_tmpdir/scmroot/libva-v4l2-request
Cloning into '/var/lib/mock/f39-build-1963062-43274/root/chroot_tmpdir/scmroot/libva-v4l2-request'...
$ git fetch origin f0c2646801374e333c744bd524ecf8906ae15bb4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libva-v4l2-request
 * [new ref]         f0c2646801374e333c744bd524ecf8906ae15bb4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0c2646 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild