$ git clone -n https://src.fedoraproject.org/rpms/libuvc.git /var/lib/mock/f45-build-17198-497/root/chroot_tmpdir/scmroot/libuvc
Cloning into '/var/lib/mock/f45-build-17198-497/root/chroot_tmpdir/scmroot/libuvc'...
$ git fetch origin 3c73a8f7da3830668f098a0f27b58e5b52e091e8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libuvc
 * [new ref]         3c73a8f7da3830668f098a0f27b58e5b52e091e8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c73a8f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild